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PHP não cadastra dados no Banco de Dados - Plugin Jquery FileUpload

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Olá Pessoal, pretendo utilizar o Plugin Jquery FileUpload, a documentação do mesmo está em: https://blueimp.github.io/jQuery-File-Upload/ 

Realizei a instalação do plugin no servidor local, conforme a documentação.

Surgiu a necessidade de cadastrar os dados no banco de dados, MySQL, e assim utilizei a seguinte documentação: https://github.com/blueimp/jQuery-File-Upload/wiki/PHP-MySQL-database-integration 

O problema é: essa documentação não realiza o cadastro no banco como deveria, encontrei muitas pessoas na internet com o mesmo problema, e não encontrei algum artigo que ajudasse em português ou inglês. Estou a muitos dias tentando resolver esse problema, acredito que a função handle_file_upload não está funcionando, ou chamada corretamente, ou o botão Start upload

Segue meu código e a estrutura da tabela, que para facilitar o entendimento estou utilizando a mesma da documentação do GitHub

Desde já agradeço qualquer ajuda ou dica.

 

Arquivo index.php 

Spoiler

<?php //session_start();
//require('arlg.php');
//require('confere.php');

$options = array(
    'delete_type' => 'POST',
    'db_host' => 'localhost',
    'db_user' => 'root',
    'db_pass' => ' ',
    'db_name' => 'area',
    'db_table' => 'files'
);

error_reporting(E_ALL | E_STRICT);
require('server/php/UploadHandler.php');

class CustomUploadHandler extends UploadHandler {

    protected function initialize() {
        $this->db = new mysqli(
            $this->options['delete_type'],
            $this->options['db_host'],
            $this->options['db_user'],
            $this->options['db_pass'],
            $this->options['db_name'],
            $this->options['db_table']
        );
        parent::initialize();
       $this->db->close();
    }

    protected function handle_form_data($file, $index) {
        $file->title = @$_REQUEST['title'][$index];
        $file->description = @$_REQUEST['description'][$index];
    }

    protected function handle_file_upload($uploaded_file, $name, $size, $type, $error, $index = null, $content_range = null) {
        $file = parent::handle_file_upload(
            $uploaded_file, $name, $size, $type, $error, $index, $content_range
        );
        if (empty($file->error)) {
            $sql = "INSERT INTO '".$this->options['db_table']
                ."' ('name', 'size', 'type', 'url', title', 'description')"
                ." VALUES (?, ?, ?, ?, ?,?)";
                echo $sql;
            $query = $this->db->prepare($sql);
            $query->bind_param(
                'sissss',
                $file->name,
                $file->size,
                $file->type,
                $file->url,
                $file->title,
                $file->description
            );
            $query->execute();
            $file->id = $this->db->insert_id;
        }
        return $file;
    }

    protected function set_additional_file_properties($file) {
        parent::set_additional_file_properties($file);
        if ($_SERVER['REQUEST_METHOD'] === 'GET') {
            $sql = "SELECT 'id', 'type', 'title', 'description' FROM '"
                .$this->options['db_table']."' WHERE 'name'=?";
            $query = $this->db->prepare($sql);
            $query->bind_param('s', $file->name);
            $query->execute();
            $query->bind_result(
                $id,
                $type,
                $title,
                $description
            );
            while ($query->fetch()) {
                $file->id = $id;
                $file->type = $type;
                $file->title = $title;
                $file->description = $description;
            }
        }
    }

    public function delete($print_response = true) {
        $response = parent::delete(false);
        foreach ($response as $name => $deleted) {
            if ($deleted) {
                $sql = 'DELETE FROM `'
                    .$this->options['db_table'].'` WHERE `name`=?';
                $query = $this->db->prepare($sql);
                $query->bind_param('s', $name);
                $query->execute();
            }
        } 
        return $this->generate_response($response, $print_response);
    }

}

//$upload_handler = new CustomUploadHandler($options);

?>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8" />
<title>Área Restrita Lógika Sites</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
<link rel="shortcut icon" href="assets/img/favicon.png" type="image/x-icon" />
<meta name="robots" content="noindex,nofollow"/>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
<!-- Generic page styles -->
<link rel="stylesheet" href="css/style.css">
<!-- blueimp Gallery styles -->
<link rel="stylesheet" href="https://blueimp.github.io/Gallery/css/blueimp-gallery.min.css">
<!-- CSS to style the file input field as button and adjust the Bootstrap progress bars -->
<link rel="stylesheet" href="css/jquery.fileupload.css">
<link rel="stylesheet" href="css/jquery.fileupload-ui.css">
<!-- CSS adjustments for browsers with JavaScript disabled -->
<noscript><link rel="stylesheet" href="css/jquery.fileupload-noscript.css"></noscript>
<noscript><link rel="stylesheet" href="css/jquery.fileupload-ui-noscript.css"></noscript>

<!-- HTML5 Shim and Respond.js IE8 support of HTML5 elements and media queries -->
<!-- WARNING: Respond.js doesn't work if you view the page via file:// -->
<!--[if lt IE 9]>
      <script src="https://oss.maxcdn.com/html5shiv/3.7.2/html5shiv.min.js"></script>
      <script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script>
    <![endif]-->

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js" integrity="sha384-xBuQ/xzmlsLoJpyjoggmTEz8OWUFM0/RC5BsqQBDX2v5cMvDHcMakNTNrHIW2I5f" crossorigin="anonymous"></script> 
<!-- The jQuery UI widget factory, can be omitted if jQuery UI is already included -->
<script src="js/vendor/jquery.ui.widget.js"></script>
<!-- The Templates plugin is included to render the upload/download listings -->
<script src="https://blueimp.github.io/JavaScript-Templates/js/tmpl.min.js"></script>
<!-- The Load Image plugin is included for the preview images and image resizing functionality -->
<script src="https://blueimp.github.io/JavaScript-Load-Image/js/load-image.all.min.js"></script>
<!-- The Canvas to Blob plugin is included for image resizing functionality -->
<script src="https://blueimp.github.io/JavaScript-Canvas-to-Blob/js/canvas-to-blob.min.js"></script>
<!-- Bootstrap JS is not required, but included for the responsive demo navigation -->
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script>
<!-- blueimp Gallery script -->
<script src="https://blueimp.github.io/Gallery/js/jquery.blueimp-gallery.min.js"></script>
<!-- The Iframe Transport is required for browsers without support for XHR file uploads -->
<script src="js/jquery.iframe-transport.js"></script>
<!-- The basic File Upload plugin -->
<script src="js/jquery.fileupload.js"></script>
<!-- The File Upload processing plugin -->
<script src="js/jquery.fileupload-process.js"></script>
<!-- The File Upload image preview & resize plugin -->
<script src="js/jquery.fileupload-image.js"></script>
<!-- The File Upload audio preview plugin -->
<script src="js/jquery.fileupload-audio.js"></script>
<!-- The File Upload video preview plugin -->
<script src="js/jquery.fileupload-video.js"></script>
<!-- The File Upload validation plugin -->
<script src="js/jquery.fileupload-validate.js"></script>
<!-- The File Upload user interface plugin -->
<script src="js/jquery.fileupload-ui.js"></script>
<!-- The main application script -->
<script src="js/main.js"></script>

</head>
<body>
<?php //include('top.php');?>
<div class="container-fluid content">
  <div class="row">
    <?php //include('menu.php');?>
    <div class="main ">
      <div class="page-header">
        <div class="pull-left">
          <ol class="breadcrumb visible-sm visible-md visible-lg">
            <li><a href="adm-inicio.php"><i class="icon fa fa-home"></i>Início</a></li>
            <li><a href="adm-fotos-cadastrar.php"><i class="icon fa fa-globe"></i>Galeria de Fotos</a></li>
            <li class="active"><i class="fa fa-pencil"></i>Cadastrar Galeria de Fotos</li>
          </ol>
        </div>
        <div class="pull-right">
          <h2>Galerias de Fotos</h2>
        </div>
      </div>
      <div class="row">
        <div class="col-lg-12 col-md-12 col-sm-12 col-xs-12">
          <div class="panel panel-default bk-bg-white">
            <div class="panel-heading bk-bg-white">
              <h6><i class="fa fa-globe red"></i>Cadastrar Galeria</h6>
              <div class="panel-actions"> <a href="#" class="btn-minimize"><i class="fa fa-caret-up"></i></a> <a href="#" class="btn-close"><i class="fa fa-times"></i></a> </div>
            </div>
            <?php
       // $sql_tamanho = "SELECT * FROM stlg_tano_imns";
       // $trata_tamanho = $banco->query($sql_tamanho);
       // $trata_tamanho = $trata_tamanho ->fetch(PDO::FETCH_ASSOC);
      ?>
            <div class="panel-body">
              

         <form id="fileupload" action="https://jquery-file-upload.appspot.com/" method="GET" enctype="multipart/form-data">
      
        <noscript><input  name="redirect" value="https://blueimp.github.io/jQuery-File-Upload/"></noscript>
      
        <div class="row fileupload-buttonbar">
            <div class="col-lg-7">
            
                <span class="btn btn-success fileinput-button">
                    <i class="glyphicon glyphicon-plus"></i>
                    <span>Add files...</span>
                    <input type="file" name="files[]" multiple>
                </span>
                <button type="submit"  method="POST" id="fileuploadsubmit" class="btn btn-primary start fileuploadsubmit">
                    <i class="glyphicon glyphicon-upload"></i> 
                    <span>Start upload</span>
                </button>
                <button type="reset" class="btn btn-warning cancel">
                    <i class="glyphicon glyphicon-ban-circle"></i>
                    <span>Cancel upload</span>
                </button>
                <button type="button" class="btn btn-danger delete">
                    <i class="glyphicon glyphicon-trash"></i>
                    <span>Delete</span>
                </button>
                <input type="checkbox" class="toggle">
                <!-- The global file processing state -->
                <span class="fileupload-process"></span>
            </div>
            <!-- The global progress state -->
            <div class="col-lg-5 fileupload-progress fade">
                <!-- The global progress bar -->
                <div class="progress progress-striped active" role="progressbar" aria-valuemin="0" aria-valuemax="100">
                    <div class="progress-bar progress-bar-success" style="width:0%;"></div>
                </div>
                <!-- The extended global progress state -->
                <div class="progress-extended">&nbsp;</div>
            </div>
        </div>
        <!-- The table listing the files available for upload/download -->
        <table role="presentation" class="table table-striped"><tbody class="files"></tbody></table>
    </form>
    <br>
    
</div>
<
<div id="blueimp-gallery" class="blueimp-gallery blueimp-gallery-controls" data-filter=":even">
    <div class="slides"></div>
    <h3 class="title"></h3>
    <a class="prev">‹</a>
    <a class="next">›</a>
    <a class="close">×</a>
    <a class="play-pause"></a>
    <ol class="indicator"></ol>
</div>
<script id="template-upload" type="text/x-tmpl">
{% for (var i=0, file; file=o.files; i++) { %}
    <tr class="template-upload fade">
        <td>
            <span class="preview"></span>
        </td>
        <td>
            <p class="name">{%=file.name%}</p>
            <strong class="error text-danger"></strong>
            <p class="title"><strong>{%=file.title||''%}</strong></p>
            <p class="description">{%=file.description||''%}</p>
        </td>

        <td>
            <label class="title">
                <span>Title:</span><br>
                <input name="title[]" class="form-control">
            </label>
            <label class="description">
                <span>Description:</span><br>
                <input name="description[]" class="form-control">
            </label>       
        </td>
        <td>
            <p class="size">Processing...</p>
            <div class="progress progress-striped active" role="progressbar" aria-valuemin="0" aria-valuemax="100" aria-valuenow="0"><div class="progress-bar progress-bar-success" style="width:0%;"></div></div>
        </td>
        <td>
            {% if (!i && !o.options.autoUpload) { %}
                <button class="btn btn-primary start" disabled>
                    <i class="glyphicon glyphicon-upload"></i>
                    <span>Start</span>
                </button>
            {% } %}
            {% if (!i) { %}
                <button class="btn btn-warning cancel">
                    <i class="glyphicon glyphicon-ban-circle"></i>
                    <span>Cancel</span>
                </button>
            {% } %}
        </td>
    </tr>
{% } %}
</script>
<script id="template-download" type="text/x-tmpl">
{% for (var i=0, file; file=o.files; i++) { %}
    <tr class="template-download fade">
        <td>
            <span class="preview">
                {% if (file.thumbnailUrl) { %}
                    <a href="{%=file.url%}" title="{%=file.name%}" download="{%=file.name%}" data-gallery><img src="{%=file.thumbnailUrl%}"></a>
                {% } %}
            </span>
        </td>
        <td>
            <p class="name">
                {% if (file.url) { %}
                    <a href="{%=file.url%}" title="{%=file.name%}" download="{%=file.name%}" {%=file.thumbnailUrl?'data-gallery':''%}>{%=file.name%}</a>
                {% } else { %}
                    <span>{%=file.name%}</span>
                {% } %}
            </p>
            {% if (file.error) { %}
                <div><span class="label label-danger">Error</span> {%=file.error%}</div>
            {% } %}
        </td>
        <td>  <p class="title"><strong>{%=file.title||''%}</strong></p>
            <p class="description">{%=file.description||''%}</p>
            <span class="size">{%=o.formatFileSize(file.size)%}</span>
        </td>
        <td>
            {% if (file.deleteUrl) { %}
                <button class="btn btn-danger delete" data-type="{%=file.deleteType%}" data-url="{%=file.deleteUrl%}"{% if (file.deleteWithCredentials) { %} data-xhr-fields='{"withCredentials":true}'{% } %}>
                    <i class="glyphicon glyphicon-trash"></i>
                    <span>Delete</span>
                </button>
                <input type="checkbox" name="delete" value="1" class="toggle">
            {% } else { %}
                <button class="btn btn-warning cancel">
                    <i class="glyphicon glyphicon-ban-circle"></i>
                    <span>Cancel</span>
                </button>
            {% } %}
        </td>
    </tr>
{% } %}
</script>

            </div>
          </div>
        </div>
      </div>
    </div>
  </div>
</div>
<div class="clearfix"></div>

<!-- The XDomainRequest Transport is included for cross-domain file deletion for IE 8 and IE 9 -->
<!--[if (gte IE 8)&(lt IE 10)]>
<script src="js/cors/jquery.xdr-transport.js"></script>
<![endif]-->

</body>
</html>

 

Arquivo UploadHandler.php - Localizado detro da pasta server/php/

Spoiler

<?php
/*
 * jQuery File Upload Plugin PHP Class
 * https://github.com/blueimp/jQuery-File-Upload
 *
 * Copyright 2010, Sebastian Tschan
 * https://blueimp.net
 *
 * Licensed under the MIT license:
 * https://opensource.org/licenses/MIT
 */

class UploadHandler
{

    protected $options;

    // PHP File Upload error message codes:
    // http://php.net/manual/en/features.file-upload.errors.php
    protected $error_messages = array(
        1 => 'The uploaded file exceeds the upload_max_filesize directive in php.ini',
        2 => 'The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form',
        3 => 'The uploaded file was only partially uploaded',
        4 => 'No file was uploaded',
        6 => 'Missing a temporary folder',
        7 => 'Failed to write file to disk',
        8 => 'A PHP extension stopped the file upload',
        'post_max_size' => 'The uploaded file exceeds the post_max_size directive in php.ini',
        'max_file_size' => 'File is too big',
        'min_file_size' => 'File is too small',
        'accept_file_types' => 'Filetype not allowed',
        'max_number_of_files' => 'Maximum number of files exceeded',
        'max_width' => 'Image exceeds maximum width',
        'min_width' => 'Image requires a minimum width',
        'max_height' => 'Image exceeds maximum height',
        'min_height' => 'Image requires a minimum height',
        'abort' => 'File upload aborted',
        'image_resize' => 'Failed to resize image'
    );

    const IMAGETYPE_GIF = 1;
    const IMAGETYPE_JPEG = 2;
    const IMAGETYPE_PNG = 3;

    protected $image_objects = array();

    public function __construct($options = null, $initialize = true, $error_messages = null) {
        $this->response = array();
        $this->options = array(
            'script_url' => $this->get_full_url().'/'.$this->basename($this->get_server_var('SCRIPT_NAME')),
            'upload_dir' => dirname($this->get_server_var('SCRIPT_FILENAME')).'/files/',
            'upload_url' => $this->get_full_url().'/files/',
            'input_stream' => 'php://input',
            'user_dirs' => false,
            'mkdir_mode' => 0755,
            'param_name' => 'files',
            // Set the following option to 'POST', if your server does not support
            // DELETE requests. This is a parameter sent to the client:
            'delete_type' => 'POST',
            'access_control_allow_origin' => '*',
            'access_control_allow_credentials' => false,
            'access_control_allow_methods' => array(
                'OPTIONS',
                'HEAD',
                'GET',
                'POST',
                'PUT',
                'PATCH',
                'DELETE'
            ),
            'access_control_allow_headers' => array(
                'Content-Type',
                'Content-Range',
                'Content-Disposition'
            ),
            // By default, allow redirects to the referer protocol+host:
            'redirect_allow_target' => '/^'.preg_quote(
              parse_url($this->get_server_var('HTTP_REFERER'), PHP_URL_SCHEME)
                .'://'
                .parse_url($this->get_server_var('HTTP_REFERER'), PHP_URL_HOST)
                .'/', // Trailing slash to not match subdomains by mistake
              '/' // preg_quote delimiter param
            ).'/',
            // Enable to provide file downloads via GET requests to the PHP script:
            //     1. Set to 1 to download files via readfile method through PHP
            //     2. Set to 2 to send a X-Sendfile header for lighttpd/Apache
            //     3. Set to 3 to send a X-Accel-Redirect header for nginx
            // If set to 2 or 3, adjust the upload_url option to the base path of
            // the redirect parameter, e.g. '/files/'.
            'download_via_php' => false,
            // Read files in chunks to avoid memory limits when download_via_php
            // is enabled, set to 0 to disable chunked reading of files:
            'readfile_chunk_size' => 10 * 1024 * 1024, // 10 MiB
            // Defines which files can be displayed inline when downloaded:
            'inline_file_types' => '/\.(gif|jpe?g|png)$/i',
            // Defines which files (based on their names) are accepted for upload.
            // By default, only allows file uploads with image file extensions.
            // Only change this setting after making sure that any allowed file
            // types cannot be executed by the webserver in the files directory,
            // e.g. PHP scripts, nor executed by the browser when downloaded,
            // e.g. HTML files with embedded JavaScript code.
            // Please also read the SECURITY.md document in this repository.
            'accept_file_types' => '/\.(gif|jpe?g|png)$/i',
            // Replaces dots in filenames with the given string.
            // Can be disabled by setting it to false or an empty string.
            // Note that this is a security feature for servers that support
            // multiple file extensions, e.g. the Apache AddHandler Directive:
            // https://httpd.apache.org/docs/current/mod/mod_mime.html#addhandler
            // Before disabling it, make sure that files uploaded with multiple
            // extensions cannot be executed by the webserver, e.g.
            // "example.php.png" with embedded PHP code, nor executed by the
            // browser when downloaded, e.g. "example.html.gif" with embedded
            // JavaScript code.
            'replace_dots_in_filenames' => '-',
            // The php.ini settings upload_max_filesize and post_max_size
            // take precedence over the following max_file_size setting:
            'max_file_size' => null,
            'min_file_size' => 1,
            // The maximum number of files for the upload directory:
            'max_number_of_files' => null,
            // Reads first file bytes to identify and correct file extensions:
            'correct_image_extensions' => false,
            // Image resolution restrictions:
            'max_width' => null,
            'max_height' => null,
            'min_width' => 1,
            'min_height' => 1,
            // Set the following option to false to enable resumable uploads:
            'discard_aborted_uploads' => true,
            // Set to 0 to use the GD library to scale and orient images,
            // set to 1 to use imagick (if installed, falls back to GD),
            // set to 2 to use the ImageMagick convert binary directly:
            'image_library' => 1,
            // Uncomment the following to define an array of resource limits
            // for imagick:
            /*
            'imagick_resource_limits' => array(
                imagick::RESOURCETYPE_MAP => 32,
                imagick::RESOURCETYPE_MEMORY => 32
            ),
            */
            // Command or path for to the ImageMagick convert binary:
            'convert_bin' => 'convert',
            // Uncomment the following to add parameters in front of each
            // ImageMagick convert call (the limit constraints seem only
            // to have an effect if put in front):
            /*
            'convert_params' => '-limit memory 32MiB -limit map 32MiB',
            */
            // Command or path for to the ImageMagick identify binary:
            'identify_bin' => 'identify',
            'image_versions' => array(
                // The empty image version key defines options for the original image.
                // Keep in mind: these image manipulations are inherited by all other image versions from this point onwards. 
                // Also note that the property 'no_cache' is not inherited, since it's not a manipulation.
                '' => array(
                    // Automatically rotate images based on EXIF meta data:
                    'auto_orient' => true
                ),
                // You can add arrays to generate different versions.
                // The name of the key is the name of the version (example: 'medium'). 
                // the array contains the options to apply.
                /*
                'medium' => array(
                    'max_width' => 800,
                    'max_height' => 600
                ),
                */
                'thumbnail' => array(
                    // Uncomment the following to use a defined directory for the thumbnails
                    // instead of a subdirectory based on the version identifier.
                    // Make sure that this directory doesn't allow execution of files if you
                    // don't pose any restrictions on the type of uploaded files, e.g. by
                    // copying the .htaccess file from the files directory for Apache:
                    //'upload_dir' => dirname($this->get_server_var('SCRIPT_FILENAME')).'/thumb/',
                    //'upload_url' => $this->get_full_url().'/thumb/',
                    // Uncomment the following to force the max
                    // dimensions and e.g. create square thumbnails:
                    // 'auto_orient' => true,
                    // 'crop' => true,
                    // 'jpeg_quality' => 70,
                    // 'no_cache' => true, (there's a caching option, but this remembers thumbnail sizes from a previous action!)
                    // 'strip' => true, (this strips EXIF tags, such as geolocation)
                    'max_width' => 80, // either specify width, or set to 0. Then width is automatically adjusted - keeping aspect ratio to a specified max_height.
                    'max_height' => 80 // either specify height, or set to 0. Then height is automatically adjusted - keeping aspect ratio to a specified max_width.
                )
            ),
            'print_response' => true
        );
        if ($options) {
            $this->options = $options + $this->options;
        }
        if ($error_messages) {
            $this->error_messages = $error_messages + $this->error_messages;
        }
        if ($initialize) {
            $this->initialize();
        }
    }

    protected function initialize() {
        switch ($this->get_server_var('REQUEST_METHOD')) {
            case 'OPTIONS':
            case 'HEAD':
                $this->head();
                break;
            case 'GET':
                $this->get($this->options['print_response']);
                break;
            case 'PATCH':
            case 'PUT':
            case 'POST':
                $this->post($this->options['print_response']);
                break;
            case 'DELETE':
                $this->delete($this->options['print_response']);
                break;
            default:
                $this->header('HTTP/1.1 405 Method Not Allowed');
        }
    }

    protected function get_full_url() {
        $https = !empty($_SERVER['HTTPS']) && strcasecmp($_SERVER['HTTPS'], 'on') === 0 ||
            !empty($_SERVER['HTTP_X_FORWARDED_PROTO']) &&
                strcasecmp($_SERVER['HTTP_X_FORWARDED_PROTO'], 'https') === 0;
        return
            ($https ? 'https://' : 'http://').
            (!empty($_SERVER['REMOTE_USER']) ? $_SERVER['REMOTE_USER'].'@' : '').
            (isset($_SERVER['HTTP_HOST']) ? $_SERVER['HTTP_HOST'] : ($_SERVER['SERVER_NAME'].
            ($https && $_SERVER['SERVER_PORT'] === 443 ||
            $_SERVER['SERVER_PORT'] === 80 ? '' : ':'.$_SERVER['SERVER_PORT']))).
            substr($_SERVER['SCRIPT_NAME'],0, strrpos($_SERVER['SCRIPT_NAME'], '/'));
    }

    protected function get_user_id() {
        @session_start();
        return session_id();
    }

    protected function get_user_path() {
        if ($this->options['user_dirs']) {
            return $this->get_user_id().'/';
        }
        return '';
    }

    protected function get_upload_path($file_name = null, $version = null) {
        $file_name = $file_name ? $file_name : '';
        if (empty($version)) {
            $version_path = '';
        } else {
            $version_dir = @$this->options['image_versions'][$version]['upload_dir'];
            if ($version_dir) {
                return $version_dir.$this->get_user_path().$file_name;
            }
            $version_path = $version.'/';
        }
        return $this->options['upload_dir'].$this->get_user_path()
            .$version_path.$file_name;
    }

    protected function get_query_separator($url) {
        return strpos($url, '?') === false ? '?' : '&';
    }

    protected function get_download_url($file_name, $version = null, $direct = false) {
        if (!$direct && $this->options['download_via_php']) {
            $url = $this->options['script_url']
                .$this->get_query_separator($this->options['script_url'])
                .$this->get_singular_param_name()
                .'='.rawurlencode($file_name);
            if ($version) {
                $url .= '&version='.rawurlencode($version);
            }
            return $url.'&download=1';
        }
        if (empty($version)) {
            $version_path = '';
        } else {
            $version_url = @$this->options['image_versions'][$version]['upload_url'];
            if ($version_url) {
                return $version_url.$this->get_user_path().rawurlencode($file_name);
            }
            $version_path = rawurlencode($version).'/';
        }
        return $this->options['upload_url'].$this->get_user_path()
            .$version_path.rawurlencode($file_name);
    }

    protected function set_additional_file_properties($file) {
        $file->deleteUrl = $this->options['script_url']
            .$this->get_query_separator($this->options['script_url'])
            .$this->get_singular_param_name()
            .'='.rawurlencode($file->name);
        $file->deleteType = $this->options['delete_type'];
        if ($file->deleteType !== 'DELETE') {
            $file->deleteUrl .= '&_method=DELETE';
        }
        if ($this->options['access_control_allow_credentials']) {
            $file->deleteWithCredentials = true;
        }
    }

    // Fix for overflowing signed 32 bit integers,
    // works for sizes up to 2^32-1 bytes (4 GiB - 1):
    protected function fix_integer_overflow($size) {
        if ($size < 0) {
            $size += 2.0 * (PHP_INT_MAX + 1);
        }
        return $size;
    }

    protected function get_file_size($file_path, $clear_stat_cache = false) {
        if ($clear_stat_cache) {
            if (version_compare(PHP_VERSION, '5.3.0') >= 0) {
                clearstatcache(true, $file_path);
            } else {
                clearstatcache();
            }
        }
        return $this->fix_integer_overflow(filesize($file_path));
    }

    protected function is_valid_file_object($file_name) {
        $file_path = $this->get_upload_path($file_name);
        if (is_file($file_path) && $file_name[0] !== '.') {
            return true;
        }
        return false;
    }

    protected function get_file_object($file_name) {
        if ($this->is_valid_file_object($file_name)) {
            $file = new \stdClass();
            $file->name = $file_name;
            $file->size = $this->get_file_size(
                $this->get_upload_path($file_name)
            );
            $file->url = $this->get_download_url($file->name);
            foreach ($this->options['image_versions'] as $version => $options) {
                if (!empty($version)) {
                    if (is_file($this->get_upload_path($file_name, $version))) {
                        $file->{$version.'Url'} = $this->get_download_url(
                            $file->name,
                            $version
                        );
                    }
                }
            }
            $this->set_additional_file_properties($file);
            return $file;
        }
        return null;
    }

    protected function get_file_objects($iteration_method = 'get_file_object') {
        $upload_dir = $this->get_upload_path();
        if (!is_dir($upload_dir)) {
            return array();
        }
        return array_values(array_filter(array_map(
            array($this, $iteration_method),
            scandir($upload_dir)
        )));
    }

    protected function count_file_objects() {
        return count($this->get_file_objects('is_valid_file_object'));
    }

    protected function get_error_message($error) {
        return isset($this->error_messages[$error]) ?
            $this->error_messages[$error] : $error;
    }

    public function get_config_bytes($val) {
        $val = trim($val);
        $last = strtolower($val[strlen($val)-1]);
        $val = (int)$val;
        switch ($last) {
            case 'g':
                $val *= 1024;
            case 'm':
                $val *= 1024;
            case 'k':
                $val *= 1024;
        }
        return $this->fix_integer_overflow($val);
    }

    protected function validate($uploaded_file, $file, $error, $index) {
        if ($error) {
            $file->error = $this->get_error_message($error);
            return false;
        }
        $content_length = $this->fix_integer_overflow(
            (int)$this->get_server_var('CONTENT_LENGTH')
        );
        $post_max_size = $this->get_config_bytes(ini_get('post_max_size'));
        if ($post_max_size && ($content_length > $post_max_size)) {
            $file->error = $this->get_error_message('post_max_size');
            return false;
        }
        if (!preg_match($this->options['accept_file_types'], $file->name)) {
            $file->error = $this->get_error_message('accept_file_types');
            return false;
        }
        if ($uploaded_file && is_uploaded_file($uploaded_file)) {
            $file_size = $this->get_file_size($uploaded_file);
        } else {
            $file_size = $content_length;
        }
        if ($this->options['max_file_size'] && (
                $file_size > $this->options['max_file_size'] ||
                $file->size > $this->options['max_file_size'])
            ) {
            $file->error = $this->get_error_message('max_file_size');
            return false;
        }
        if ($this->options['min_file_size'] &&
            $file_size < $this->options['min_file_size']) {
            $file->error = $this->get_error_message('min_file_size');
            return false;
        }
        if (is_int($this->options['max_number_of_files']) &&
                ($this->count_file_objects() >= $this->options['max_number_of_files']) &&
                // Ignore additional chunks of existing files:
                !is_file($this->get_upload_path($file->name))) {
            $file->error = $this->get_error_message('max_number_of_files');
            return false;
        }
        $max_width = @$this->options['max_width'];
        $max_height = @$this->options['max_height'];
        $min_width = @$this->options['min_width'];
        $min_height = @$this->options['min_height'];
        if (($max_width || $max_height || $min_width || $min_height)
            && $this->is_valid_image_file($uploaded_file)) {
            list($img_width, $img_height) = $this->get_image_size($uploaded_file);
            // If we are auto rotating the image by default, do the checks on
            // the correct orientation
            if (
                @$this->options['image_versions']['']['auto_orient'] &&
                function_exists('exif_read_data') &&
                ($exif = @exif_read_data($uploaded_file)) &&
                (((int) @$exif['Orientation']) >= 5)
            ) {
                $tmp = $img_width;
                $img_width = $img_height;
                $img_height = $tmp;
                unset($tmp);
            }
        }
        if (!empty($img_width)) {
            if ($max_width && $img_width > $max_width) {
                $file->error = $this->get_error_message('max_width');
                return false;
            }
            if ($max_height && $img_height > $max_height) {
                $file->error = $this->get_error_message('max_height');
                return false;
            }
            if ($min_width && $img_width < $min_width) {
                $file->error = $this->get_error_message('min_width');
                return false;
            }
            if ($min_height && $img_height < $min_height) {
                $file->error = $this->get_error_message('min_height');
                return false;
            }
        }
        return true;
    }

    protected function upcount_name_callback($matches) {
        $index = isset($matches[1]) ? ((int)$matches[1]) + 1 : 1;
        $ext = isset($matches[2]) ? $matches[2] : '';
        return ' ('.$index.')'.$ext;
    }

    protected function upcount_name($name) {
        return preg_replace_callback(
            '/(?:(?: \(([\d]+)\))?(\.[^.]+))?$/',
            array($this, 'upcount_name_callback'),
            $name,
            1
        );
    }

    protected function get_unique_filename($file_path, $name, $size, $type, $error,
            $index, $content_range) {
        while(is_dir($this->get_upload_path($name))) {
            $name = $this->upcount_name($name);
        }
        // Keep an existing filename if this is part of a chunked upload:
        $uploaded_bytes = $this->fix_integer_overflow((int)$content_range[1]);
        while (is_file($this->get_upload_path($name))) {
            if ($uploaded_bytes === $this->get_file_size(
                    $this->get_upload_path($name))) {
                break;
            }
            $name = $this->upcount_name($name);
        }
        return $name;
    }

    protected function fix_file_extension($file_path, $name, $size, $type, $error,
            $index, $content_range) {
        // Add missing file extension for known image types:
        if (strpos($name, '.') === false &&
                preg_match('/^image\/(gif|jpe?g|png)/', $type, $matches)) {
            $name .= '.'.$matches[1];
        }
        if ($this->options['correct_image_extensions']) {
            switch ($this->imagetype($file_path)) {
                case self::IMAGETYPE_JPEG:
                    $extensions = array('jpg', 'jpeg');
                    break;
                case self::IMAGETYPE_PNG:
                    $extensions = array('png');
                    break;
                case self::IMAGETYPE_GIF:
                    $extensions = array('gif');
                    break;
            }
            // Adjust incorrect image file extensions:
            if (!empty($extensions)) {
                $parts = explode('.', $name);
                $extIndex = count($parts) - 1;
                $ext = strtolower(@$parts[$extIndex]);
                if (!in_array($ext, $extensions)) {
                    $parts[$extIndex] = $extensions[0];
                    $name = implode('.', $parts);
                }
            }
        }
        return $name;
    }

    protected function trim_file_name($file_path, $name, $size, $type, $error,
            $index, $content_range) {
        // Remove path information and dots around the filename, to prevent uploading
        // into different directories or replacing hidden system files.
        // Also remove control characters and spaces (\x00..\x20) around the filename:
        $name = trim($this->basename(stripslashes($name)), ".\x00..\x20");
        // Replace dots in filenames to avoid security issues with servers
        // that interpret multiple file extensions, e.g. "example.php.png":
        $replacement = $this->options['replace_dots_in_filenames'];
        if (!empty($replacement)) {
            $parts = explode('.', $name);
            if (count($parts) > 2) {
                $ext = array_pop($parts);
                $name = implode($replacement, $parts).'.'.$ext;
            }
        }
        // Use a timestamp for empty filenames:
        if (!$name) {
            $name = str_replace('.', '-', microtime(true));
        }
        return $name;
    }

    protected function get_file_name($file_path, $name, $size, $type, $error,
            $index, $content_range) {
        $name = $this->trim_file_name($file_path, $name, $size, $type, $error,
            $index, $content_range);
        return $this->get_unique_filename(
            $file_path,
            $this->fix_file_extension($file_path, $name, $size, $type, $error,
                $index, $content_range),
            $size,
            $type,
            $error,
            $index,
            $content_range
        );
    }

    protected function get_scaled_image_file_paths($file_name, $version) {
        $file_path = $this->get_upload_path($file_name);
        if (!empty($version)) {
            $version_dir = $this->get_upload_path(null, $version);
            if (!is_dir($version_dir)) {
                mkdir($version_dir, $this->options['mkdir_mode'], true);
            }
            $new_file_path = $version_dir.'/'.$file_name;
        } else {
            $new_file_path = $file_path;
        }
        return array($file_path, $new_file_path);
    }

    protected function gd_get_image_object($file_path, $func, $no_cache = false) {
        if (empty($this->image_objects[$file_path]) || $no_cache) {
            $this->gd_destroy_image_object($file_path);
            $this->image_objects[$file_path] = $func($file_path);
        }
        return $this->image_objects[$file_path];
    }

    protected function gd_set_image_object($file_path, $image) {
        $this->gd_destroy_image_object($file_path);
        $this->image_objects[$file_path] = $image;
    }

    protected function gd_destroy_image_object($file_path) {
        $image = (isset($this->image_objects[$file_path])) ? $this->image_objects[$file_path] : null ;
        return $image && imagedestroy($image);
    }

    protected function gd_imageflip($image, $mode) {
        if (function_exists('imageflip')) {
            return imageflip($image, $mode);
        }
        $new_width = $src_width = imagesx($image);
        $new_height = $src_height = imagesy($image);
        $new_img = imagecreatetruecolor($new_width, $new_height);
        $src_x = 0;
        $src_y = 0;
        switch ($mode) {
            case '1': // flip on the horizontal axis
                $src_y = $new_height - 1;
                $src_height = -$new_height;
                break;
            case '2': // flip on the vertical axis
                $src_x  = $new_width - 1;
                $src_width = -$new_width;
                break;
            case '3': // flip on both axes
                $src_y = $new_height - 1;
                $src_height = -$new_height;
                $src_x  = $new_width - 1;
                $src_width = -$new_width;
                break;
            default:
                return $image;
        }
        imagecopyresampled(
            $new_img,
            $image,
            0,
            0,
            $src_x,
            $src_y,
            $new_width,
            $new_height,
            $src_width,
            $src_height
        );
        return $new_img;
    }

    protected function gd_orient_image($file_path, $src_img) {
        if (!function_exists('exif_read_data')) {
            return false;
        }
        $exif = @exif_read_data($file_path);
        if ($exif === false) {
            return false;
        }
        $orientation = (int)@$exif['Orientation'];
        if ($orientation < 2 || $orientation > 8) {
            return false;
        }
        switch ($orientation) {
            case 2:
                $new_img = $this->gd_imageflip(
                    $src_img,
                    defined('IMG_FLIP_VERTICAL') ? IMG_FLIP_VERTICAL : 2
                );
                break;
            case 3:
                $new_img = imagerotate($src_img, 180, 0);
                break;
            case 4:
                $new_img = $this->gd_imageflip(
                    $src_img,
                    defined('IMG_FLIP_HORIZONTAL') ? IMG_FLIP_HORIZONTAL : 1
                );
                break;
            case 5:
                $tmp_img = $this->gd_imageflip(
                    $src_img,
                    defined('IMG_FLIP_HORIZONTAL') ? IMG_FLIP_HORIZONTAL : 1
                );
                $new_img = imagerotate($tmp_img, 270, 0);
                imagedestroy($tmp_img);
                break;
            case 6:
                $new_img = imagerotate($src_img, 270, 0);
                break;
            case 7:
                $tmp_img = $this->gd_imageflip(
                    $src_img,
                    defined('IMG_FLIP_VERTICAL') ? IMG_FLIP_VERTICAL : 2
                );
                $new_img = imagerotate($tmp_img, 270, 0);
                imagedestroy($tmp_img);
                break;
            case 8:
                $new_img = imagerotate($src_img, 90, 0);
                break;
            default:
                return false;
        }
        $this->gd_set_image_object($file_path, $new_img);
        return true;
    }

    protected function gd_create_scaled_image($file_name, $version, $options) {
        if (!function_exists('imagecreatetruecolor')) {
            error_log('Function not found: imagecreatetruecolor');
            return false;
        }
        list($file_path, $new_file_path) =
            $this->get_scaled_image_file_paths($file_name, $version);
        $type = strtolower(substr(strrchr($file_name, '.'), 1));
        switch ($type) {
            case 'jpg':
            case 'jpeg':
                $src_func = 'imagecreatefromjpeg';
                $write_func = 'imagejpeg';
                $image_quality = isset($options['jpeg_quality']) ?
                    $options['jpeg_quality'] : 75;
                break;
            case 'gif':
                $src_func = 'imagecreatefromgif';
                $write_func = 'imagegif';
                $image_quality = null;
                break;
            case 'png':
                $src_func = 'imagecreatefrompng';
                $write_func = 'imagepng';
                $image_quality = isset($options['png_quality']) ?
                    $options['png_quality'] : 9;
                break;
            default:
                return false;
        }
        $src_img = $this->gd_get_image_object(
            $file_path,
            $src_func,
            !empty($options['no_cache'])
        );
        $image_oriented = false;
        if (!empty($options['auto_orient']) && $this->gd_orient_image(
                $file_path,
                $src_img
            )) {
            $image_oriented = true;
            $src_img = $this->gd_get_image_object(
                $file_path,
                $src_func
            );
        }
        $max_width = $img_width = imagesx($src_img);
        $max_height = $img_height = imagesy($src_img);
        if (!empty($options['max_width'])) {
            $max_width = $options['max_width'];
        }
        if (!empty($options['max_height'])) {
            $max_height = $options['max_height'];
        }
        $scale = min(
            $max_width / $img_width,
            $max_height / $img_height
        );
        if ($scale >= 1) {
            if ($image_oriented) {
                return $write_func($src_img, $new_file_path, $image_quality);
            }
            if ($file_path !== $new_file_path) {
                return copy($file_path, $new_file_path);
            }
            return true;
        }
        if (empty($options['crop'])) {
            $new_width = $img_width * $scale;
            $new_height = $img_height * $scale;
            $dst_x = 0;
            $dst_y = 0;
            $new_img = imagecreatetruecolor($new_width, $new_height);
        } else {
            if (($img_width / $img_height) >= ($max_width / $max_height)) {
                $new_width = $img_width / ($img_height / $max_height);
                $new_height = $max_height;
            } else {
                $new_width = $max_width;
                $new_height = $img_height / ($img_width / $max_width);
            }
            $dst_x = 0 - ($new_width - $max_width) / 2;
            $dst_y = 0 - ($new_height - $max_height) / 2;
            $new_img = imagecreatetruecolor($max_width, $max_height);
        }
        // Handle transparency in GIF and PNG images:
        switch ($type) {
            case 'gif':
            case 'png':
                imagecolortransparent($new_img, imagecolorallocate($new_img, 0, 0, 0));
            case 'png':
                imagealphablending($new_img, false);
                imagesavealpha($new_img, true);
                break;
        }
        $success = imagecopyresampled(
            $new_img,
            $src_img,
            $dst_x,
            $dst_y,
            0,
            0,
            $new_width,
            $new_height,
            $img_width,
            $img_height
        ) && $write_func($new_img, $new_file_path, $image_quality);
        $this->gd_set_image_object($file_path, $new_img);
        return $success;
    }

    protected function imagick_get_image_object($file_path, $no_cache = false) {
        if (empty($this->image_objects[$file_path]) || $no_cache) {
            $this->imagick_destroy_image_object($file_path);
            $image = new \Imagick();
            if (!empty($this->options['imagick_resource_limits'])) {
                foreach ($this->options['imagick_resource_limits'] as $type => $limit) {
                    $image->setResourceLimit($type, $limit);
                }
            }
            $image->readImage($file_path);
            $this->image_objects[$file_path] = $image;
        }
        return $this->image_objects[$file_path];
    }

    protected function imagick_set_image_object($file_path, $image) {
        $this->imagick_destroy_image_object($file_path);
        $this->image_objects[$file_path] = $image;
    }

    protected function imagick_destroy_image_object($file_path) {
        $image = (isset($this->image_objects[$file_path])) ? $this->image_objects[$file_path] : null ;
        return $image && $image->destroy();
    }

    protected function imagick_orient_image($image) {
        $orientation = $image->getImageOrientation();
        $background = new \ImagickPixel('none');
        switch ($orientation) {
            case \imagick::ORIENTATION_TOPRIGHT: // 2
                $image->flopImage(); // horizontal flop around y-axis
                break;
            case \imagick::ORIENTATION_BOTTOMRIGHT: // 3
                $image->rotateImage($background, 180);
                break;
            case \imagick::ORIENTATION_BOTTOMLEFT: // 4
                $image->flipImage(); // vertical flip around x-axis
                break;
            case \imagick::ORIENTATION_LEFTTOP: // 5
                $image->flopImage(); // horizontal flop around y-axis
                $image->rotateImage($background, 270);
                break;
            case \imagick::ORIENTATION_RIGHTTOP: // 6
                $image->rotateImage($background, 90);
                break;
            case \imagick::ORIENTATION_RIGHTBOTTOM: // 7
                $image->flipImage(); // vertical flip around x-axis
                $image->rotateImage($background, 270);
                break;
            case \imagick::ORIENTATION_LEFTBOTTOM: // 8
                $image->rotateImage($background, 270);
                break;
            default:
                return false;
        }
        $image->setImageOrientation(\imagick::ORIENTATION_TOPLEFT); // 1
        return true;
    }

    protected function imagick_create_scaled_image($file_name, $version, $options) {
        list($file_path, $new_file_path) =
            $this->get_scaled_image_file_paths($file_name, $version);
        $image = $this->imagick_get_image_object(
            $file_path,
            !empty($options['crop']) || !empty($options['no_cache'])
        );
        if ($image->getImageFormat() === 'GIF') {
            // Handle animated GIFs:
            $images = $image->coalesceImages();
            foreach ($images as $frame) {
                $image = $frame;
                $this->imagick_set_image_object($file_name, $image);
                break;
            }
        }
        $image_oriented = false;
        if (!empty($options['auto_orient'])) {
            $image_oriented = $this->imagick_orient_image($image);
        } 
        
        $image_resize = false; 
        $new_width = $max_width = $img_width = $image->getImageWidth();
        $new_height = $max_height = $img_height = $image->getImageHeight(); 
          
        // use isset(). User might be setting max_width = 0 (auto in regular resizing). Value 0 would be considered empty when you use empty()
        if (isset($options['max_width'])) {
            $image_resize = true; 
            $new_width = $max_width = $options['max_width']; 
        }
        if (isset($options['max_height'])) {
            $image_resize = true;
            $new_height = $max_height = $options['max_height'];
        }
        
        $image_strip = (isset($options['strip']) ? $options['strip'] : false);
 
        if ( !$image_oriented && ($max_width >= $img_width) && ($max_height >= $img_height) && !$image_strip && empty($options["jpeg_quality"]) ) {        
            if ($file_path !== $new_file_path) {
                return copy($file_path, $new_file_path);
            }
            return true;
        }
        $crop = (isset($options['crop']) ? $options['crop'] : false);
        
        if ($crop) {
            $x = 0;
            $y = 0;
            if (($img_width / $img_height) >= ($max_width / $max_height)) {
                $new_width = 0; // Enables proportional scaling based on max_height
                $x = ($img_width / ($img_height / $max_height) - $max_width) / 2;
            } else {
                $new_height = 0; // Enables proportional scaling based on max_width
                $y = ($img_height / ($img_width / $max_width) - $max_height) / 2;
            }
        }
        $success = $image->resizeImage(
            $new_width,
            $new_height,
            isset($options['filter']) ? $options['filter'] : \imagick::FILTER_LANCZOS,
            isset($options['blur']) ? $options['blur'] : 1,
            $new_width && $new_height // fit image into constraints if not to be cropped
        );
        if ($success && $crop) {
            $success = $image->cropImage(
                $max_width,
                $max_height,
                $x,
                $y
            );
            if ($success) {
                $success = $image->setImagePage($max_width, $max_height, 0, 0);
            }
        }
        $type = strtolower(substr(strrchr($file_name, '.'), 1));
        switch ($type) {
            case 'jpg':
            case 'jpeg':
                if (!empty($options['jpeg_quality'])) {
                    $image->setImageCompression(\imagick::COMPRESSION_JPEG);
                    $image->setImageCompressionQuality($options['jpeg_quality']);
                }
                break;
        }
        if ( $image_strip ) {
            $image->stripImage();
        }
        return $success && $image->writeImage($new_file_path);
    }

    protected function imagemagick_create_scaled_image($file_name, $version, $options) {
        list($file_path, $new_file_path) =
            $this->get_scaled_image_file_paths($file_name, $version);
        $resize = @$options['max_width']
            .(empty($options['max_height']) ? '' : 'X'.$options['max_height']);
        if (!$resize && empty($options['auto_orient'])) {
            if ($file_path !== $new_file_path) {
                return copy($file_path, $new_file_path);
            }
            return true;
        }
        $cmd = $this->options['convert_bin'];
        if (!empty($this->options['convert_params'])) {
            $cmd .= ' '.$this->options['convert_params'];
        }
        $cmd .= ' '.escapeshellarg($file_path);
        if (!empty($options['auto_orient'])) {
            $cmd .= ' -auto-orient';
        }
        if ($resize) {
            // Handle animated GIFs:
            $cmd .= ' -coalesce';
            if (empty($options['crop'])) {
                $cmd .= ' -resize '.escapeshellarg($resize.'>');
            } else {
                $cmd .= ' -resize '.escapeshellarg($resize.'^');
                $cmd .= ' -gravity center';
                $cmd .= ' -crop '.escapeshellarg($resize.'+0+0');
            }
            // Make sure the page dimensions are correct (fixes offsets of animated GIFs):
            $cmd .= ' +repage';
        }
        if (!empty($options['convert_params'])) {
            $cmd .= ' '.$options['convert_params'];
        }
        $cmd .= ' '.escapeshellarg($new_file_path);
        exec($cmd, $output, $error);
        if ($error) {
            error_log(implode('\n', $output));
            return false;
        }
        return true;
    }

    protected function get_image_size($file_path) {
        if ($this->options['image_library']) {
            if (extension_loaded('imagick')) {
                $image = new \Imagick();
                try {
                    if (@$image->pingImage($file_path)) {
                        $dimensions = array($image->getImageWidth(), $image->getImageHeight());
                        $image->destroy();
                        return $dimensions;
                    }
                    return false;
                } catch (\Exception $e) {
                    error_log($e->getMessage());
                }
            }
            if ($this->options['image_library'] === 2) {
                $cmd = $this->options['identify_bin'];
                $cmd .= ' -ping '.escapeshellarg($file_path);
                exec($cmd, $output, $error);
                if (!$error && !empty($output)) {
                    // image.jpg JPEG 1920x1080 1920x1080+0+0 8-bit sRGB 465KB 0.000u 0:00.000
                    $infos = preg_split('/\s+/', substr($output[0], strlen($file_path)));
                    $dimensions = preg_split('/x/', $infos[2]);
                    return $dimensions;
                }
                return false;
            }
        }
        if (!function_exists('getimagesize')) {
            error_log('Function not found: getimagesize');
            return false;
        }
        return @getimagesize($file_path);
    }

    protected function create_scaled_image($file_name, $version, $options) {
        try {
            if ($this->options['image_library'] === 2) {
                return $this->imagemagick_create_scaled_image($file_name, $version, $options);
            }
            if ($this->options['image_library'] && extension_loaded('imagick')) {
                return $this->imagick_create_scaled_image($file_name, $version, $options);
            }
            return $this->gd_create_scaled_image($file_name, $version, $options);
        } catch (\Exception $e) {
            error_log($e->getMessage());
            return false;
        }
    }

    protected function destroy_image_object($file_path) {
        if ($this->options['image_library'] && extension_loaded('imagick')) {
            return $this->imagick_destroy_image_object($file_path);
        }
    }

    protected function imagetype($file_path) {
        $fp = fopen($file_path, 'r');
        $data = fread($fp, 4);
        fclose($fp);
        // GIF: 47 49 46 38
        if ($data === 'GIF8') {
            return self::IMAGETYPE_GIF;
        }
        // JPG: FF D8 FF
        if (bin2hex(substr($data, 0, 3)) === 'ffd8ff') {
            return self::IMAGETYPE_JPEG;
        }
        // PNG: 89 50 4E 47
        if (bin2hex(@$data[0]).substr($data, 1, 4) === '89PNG') {
            return self::IMAGETYPE_PNG;
        }
        return false;
    }

    protected function is_valid_image_file($file_path) {
        if (!preg_match('/\.(gif|jpe?g|png)$/i', $file_path)) {
            return false;
        }
        return !!$this->imagetype($file_path);
    }

    protected function handle_image_file($file_path, $file) {
        $failed_versions = array();
        foreach ($this->options['image_versions'] as $version => $options) {
            if ($this->create_scaled_image($file->name, $version, $options)) {
                if (!empty($version)) {
                    $file->{$version.'Url'} = $this->get_download_url(
                        $file->name,
                        $version
                    );
                } else {
                    $file->size = $this->get_file_size($file_path, true);
                }
            } else {
                $failed_versions[] = $version ? $version : 'original';
            }
        }
        if (count($failed_versions)) {
            $file->error = $this->get_error_message('image_resize')
                    .' ('.implode($failed_versions, ', ').')';
        }
        // Free memory:
        $this->destroy_image_object($file_path);
    }

    protected function handle_file_upload($uploaded_file, $name, $size, $type, $error,
            $index = null, $content_range = null) {
        $file = new \stdClass();
        $file->name = $this->get_file_name($uploaded_file, $name, $size, $type, $error, $index, $content_range);
        $file->size = $this->fix_integer_overflow((int)$size);
        $file->type = $type;
        if ($this->validate($uploaded_file, $file, $error, $index)) {
            $this->handle_form_data($file, $index);
            $upload_dir = $this->get_upload_path();
            if (!is_dir($upload_dir)) {
                mkdir($upload_dir, $this->options['mkdir_mode'], true);
            }
            $file_path = $this->get_upload_path($file->name);
            $append_file = $content_range && is_file($file_path) &&
                $file->size > $this->get_file_size($file_path);
            if ($uploaded_file && is_uploaded_file($uploaded_file)) {
                // multipart/formdata uploads (POST method uploads)
                if ($append_file) {
                    file_put_contents(
                        $file_path,
                        fopen($uploaded_file, 'r'),
                        FILE_APPEND
                    );
                } else {
                    move_uploaded_file($uploaded_file, $file_path);
                }
            } else {
                // Non-multipart uploads (PUT method support)
                file_put_contents(
                    $file_path,
                    fopen($this->options['input_stream'], 'r'),
                    $append_file ? FILE_APPEND : 0
                );
            }
            $file_size = $this->get_file_size($file_path, $append_file);
            if ($file_size === $file->size) {
                $file->url = $this->get_download_url($file->name);
                if ($this->is_valid_image_file($file_path)) {
                    $this->handle_image_file($file_path, $file);
                }
            } else {
                $file->size = $file_size;
                if (!$content_range && $this->options['discard_aborted_uploads']) {
                    unlink($file_path);
                    $file->error = $this->get_error_message('abort');
                }
            }
            $this->set_additional_file_properties($file);
        }
        return $file;
    }

    protected function readfile($file_path) {
        $file_size = $this->get_file_size($file_path);
        $chunk_size = $this->options['readfile_chunk_size'];
        if ($chunk_size && $file_size > $chunk_size) {
            $handle = fopen($file_path, 'rb');
            while (!feof($handle)) {
                echo fread($handle, $chunk_size);
                @ob_flush();
                @flush();
            }
            fclose($handle);
            return $file_size;
        }
        return readfile($file_path);
    }

    protected function body($str) {
        echo $str;
    }

    protected function header($str) {
        header($str);
    }

    protected function get_upload_data($id) {
        return @$_FILES[$id];
    }

    protected function get_post_param($id) {
        return @$_POST[$id];
    }

    protected function get_query_param($id) {
        return @$_GET[$id];
    }

    protected function get_server_var($id) {
        return @$_SERVER[$id];
    }

    protected function handle_form_data($file, $index) {
        // Handle form data, e.g. $_POST['description'][$index]
    }

    protected function get_version_param() {
        return $this->basename(stripslashes($this->get_query_param('version')));
    }

    protected function get_singular_param_name() {
        return substr($this->options['param_name'], 0, -1);
    }

    protected function get_file_name_param() {
        $name = $this->get_singular_param_name();
        return $this->basename(stripslashes($this->get_query_param($name)));
    }

    protected function get_file_names_params() {
        $params = $this->get_query_param($this->options['param_name']);
        if (!$params) {
            return null;
        }
        foreach ($params as $key => $value) {
            $params[$key] = $this->basename(stripslashes($value));
        }
        return $params;
    }

    protected function get_file_type($file_path) {
        switch (strtolower(pathinfo($file_path, PATHINFO_EXTENSION))) {
            case 'jpeg':
            case 'jpg':
                return 'image/jpeg';
            case 'png':
                return 'image/png';
            case 'gif':
                return 'image/gif';
            default:
                return '';
        }
    }

    protected function download() {
        switch ($this->options['download_via_php']) {
            case 1:
                $redirect_header = null;
                break;
            case 2:
                $redirect_header = 'X-Sendfile';
                break;
            case 3:
                $redirect_header = 'X-Accel-Redirect';
                break;
            default:
                return $this->header('HTTP/1.1 403 Forbidden');
        }
        $file_name = $this->get_file_name_param();
        if (!$this->is_valid_file_object($file_name)) {
            return $this->header('HTTP/1.1 404 Not Found');
        }
        if ($redirect_header) {
            return $this->header(
                $redirect_header.': '.$this->get_download_url(
                    $file_name,
                    $this->get_version_param(),
                    true
                )
            );
        }
        $file_path = $this->get_upload_path($file_name, $this->get_version_param());
        // Prevent browsers from MIME-sniffing the content-type:
        $this->header('X-Content-Type-Options: nosniff');
        if (!preg_match($this->options['inline_file_types'], $file_name)) {
            $this->header('Content-Type: application/octet-stream');
            $this->header('Content-Disposition: attachment; filename="'.$file_name.'"');
        } else {
            $this->header('Content-Type: '.$this->get_file_type($file_path));
            $this->header('Content-Disposition: inline; filename="'.$file_name.'"');
        }
        $this->header('Content-Length: '.$this->get_file_size($file_path));
        $this->header('Last-Modified: '.gmdate('D, d M Y H:i:s T', filemtime($file_path)));
        $this->readfile($file_path);
    }

    protected function send_content_type_header() {
        $this->header('Vary: Accept');
        if (strpos($this->get_server_var('HTTP_ACCEPT'), 'application/json') !== false) {
            $this->header('Content-type: application/json');
        } else {
            $this->header('Content-type: text/plain');
        }
    }

    protected function send_access_control_headers() {
        $this->header('Access-Control-Allow-Origin: '.$this->options['access_control_allow_origin']);
        $this->header('Access-Control-Allow-Credentials: '
            .($this->options['access_control_allow_credentials'] ? 'true' : 'false'));
        $this->header('Access-Control-Allow-Methods: '
            .implode(', ', $this->options['access_control_allow_methods']));
        $this->header('Access-Control-Allow-Headers: '
            .implode(', ', $this->options['access_control_allow_headers']));
    }

    public function generate_response($content, $print_response = true) {
        $this->response = $content;
        if ($print_response) {
            $json = json_encode($content);
            $redirect = stripslashes($this->get_post_param('redirect'));
            if ($redirect && preg_match($this->options['redirect_allow_target'], $redirect)) {
                $this->header('Location: '.sprintf($redirect, rawurlencode($json)));
                return;
            }
            $this->head();
            if ($this->get_server_var('HTTP_CONTENT_RANGE')) {
                $files = isset($content[$this->options['param_name']]) ?
                    $content[$this->options['param_name']] : null;
                if ($files && is_array($files) && is_object($files[0]) && $files[0]->size) {
                    $this->header('Range: 0-'.(
                        $this->fix_integer_overflow((int)$files[0]->size) - 1
                    ));
                }
            }
            $this->body($json);
        }
        return $content;
    }

    public function get_response () {
        return $this->response;
    }

    public function head() {
        $this->header('Pragma: no-cache');
        $this->header('Cache-Control: no-store, no-cache, must-revalidate');
        $this->header('Content-Disposition: inline; filename="files.json"');
        // Prevent Internet Explorer from MIME-sniffing the content-type:
        $this->header('X-Content-Type-Options: nosniff');
        if ($this->options['access_control_allow_origin']) {
            $this->send_access_control_headers();
        }
        $this->send_content_type_header();
    }

    public function get($print_response = true) {
        if ($print_response && $this->get_query_param('download')) {
            return $this->download();
        }
        $file_name = $this->get_file_name_param();
        if ($file_name) {
            $response = array(
                $this->get_singular_param_name() => $this->get_file_object($file_name)
            );
        } else {
            $response = array(
                $this->options['param_name'] => $this->get_file_objects()
            );
        }
        return $this->generate_response($response, $print_response);
    }

    public function post($print_response = true) {
        if ($this->get_query_param('_method') === 'DELETE') {
            return $this->delete($print_response);
        }
        $upload = $this->get_upload_data($this->options['param_name']);
        // Parse the Content-Disposition header, if available:
        $content_disposition_header = $this->get_server_var('HTTP_CONTENT_DISPOSITION');
        $file_name = $content_disposition_header ?
            rawurldecode(preg_replace(
                '/(^[^"]+")|("$)/',
                '',
                $content_disposition_header
            )) : null;
        // Parse the Content-Range header, which has the following form:
        // Content-Range: bytes 0-524287/2000000
        $content_range_header = $this->get_server_var('HTTP_CONTENT_RANGE');
        $content_range = $content_range_header ?
            preg_split('/[^0-9]+/', $content_range_header) : null;
        $size =  $content_range ? $content_range[3] : null;
        $files = array();
        if ($upload) {
            if (is_array($upload['tmp_name'])) {
                // param_name is an array identifier like "files[]",
                // $upload is a multi-dimensional array:
                foreach ($upload['tmp_name'] as $index => $value) {
                    $files[] = $this->handle_file_upload(
                        $upload['tmp_name'][$index],
                        $file_name ? $file_name : $upload['name'][$index],
                        $size ? $size : $upload['size'][$index],
                        $upload['type'][$index],
                        $upload['error'][$index],
                        $index,
                        $content_range
                    );
                }
            } else {
                // param_name is a single object identifier like "file",
                // $upload is a one-dimensional array:
                $files[] = $this->handle_file_upload(
                    isset($upload['tmp_name']) ? $upload['tmp_name'] : null,
                    $file_name ? $file_name : (isset($upload['name']) ?
                            $upload['name'] : null),
                    $size ? $size : (isset($upload['size']) ?
                            $upload['size'] : $this->get_server_var('CONTENT_LENGTH')),
                    isset($upload['type']) ?
                            $upload['type'] : $this->get_server_var('CONTENT_TYPE'),
                    isset($upload['error']) ? $upload['error'] : null,
                    null,
                    $content_range
                );
            }
        }
        $response = array($this->options['param_name'] => $files);
        return $this->generate_response($response, $print_response);
    }

    public function delete($print_response = true) {
        $file_names = $this->get_file_names_params();
        if (empty($file_names)) {
            $file_names = array($this->get_file_name_param());
        }
        $response = array();
        foreach ($file_names as $file_name) {
            $file_path = $this->get_upload_path($file_name);
            $success = is_file($file_path) && $file_name[0] !== '.' && unlink($file_path);
            if ($success) {
                foreach ($this->options['image_versions'] as $version => $options) {
                    if (!empty($version)) {
                        $file = $this->get_upload_path($file_name, $version);
                        if (is_file($file)) {
                            unlink($file);
                        }
                    }
                }
            }
            $response[$file_name] = $success;
        }
        return $this->generate_response($response, $print_response);
    }

    protected function basename($filepath, $suffix = null) {
        $splited = preg_split('/\//', rtrim ($filepath, '/ '));
        return substr(basename('X'.$splited[count($splited)-1], $suffix), 1);
    }
}
 

 

Arquivo Main.js - Localizado na pasta js/

Spoiler

/*
 * jQuery File Upload Plugin JS Example
 * https://github.com/blueimp/jQuery-File-Upload
 *
 * Copyright 2010, Sebastian Tschan
 * https://blueimp.net
 *
 * Licensed under the MIT license:
 * https://opensource.org/licenses/MIT
 */

/* global $, window */

$(function () {
    'use strict';

    // Initialize the jQuery File Upload widget:
   // $('#fileupload').fileupload({
        // Uncomment the following to send cross-domain cookies:
        //xhrFields: {withCredentials: true},
       // url: 'img/'
   // });

    $('#fileupload').fileupload({
     url: 'server/php/'
        }).on('fileuploadsubmit', function (e, data) {
    data.formData = data.context.find(':input').serializeArray();
    });

    // Enable iframe cross-domain access via redirect option:
    $('#fileupload').fileupload(
        'option',
        'redirect',
        window.location.href.replace(
            /\/[^\/]*$/,
            '/cors/result.html?%s'
        )
    );

    if (window.location.hostname === 'blueimp.github.io') {
        // Demo settings:
        $('#fileupload').fileupload('option', {
            url: '//jquery-file-upload.appspot.com/',
            // Enable image resizing, except for Android and Opera,
            // which actually support image resizing, but fail to
            // send Blob objects via XHR requests:
            disableImageResize: /Android(?!.*Chrome)|Opera/
                .test(window.navigator.userAgent),
            maxFileSize: 999000,
            acceptFileTypes: /(\.|\/)(gif|jpe?g|png)$/i
        });
        // Upload server status check for browsers with CORS support:
        if ($.support.cors) {
            $.ajax({
                url: '//jquery-file-upload.appspot.com/',
                type: 'HEAD'
            }).fail(function () {
                $('<div class="alert alert-danger"/>')
                    .text('Upload server currently unavailable - ' +
                            new Date())
                    .appendTo('#fileupload');
            });
        }
    } else {
        // Load existing files:
        $('#fileupload').addClass('fileupload-processing');
        $.ajax({
            // Uncomment the following to send cross-domain cookies:
            //xhrFields: {withCredentials: true},
            url: $('#fileupload').fileupload('option', 'url'),
            dataType: 'json',
            context: $('#fileupload')[0]
        }).always(function () {
            $(this).removeClass('fileupload-processing');
        }).done(function (result) {
            $(this).fileupload('option', 'done')
                .call(this, $.Event('done'), {result: result});
        });
    }

});
 

 

estrutura_tabela_files_plugin_fileupload.jpg

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