Como pegar um atribulo do xml pelo parse sax PHP?

Consigo pegar todos os valores do xml através do código abaixo, mas não consigo pegar os atributos.

Código:

<?php

$tutors   = array();
   $elements   = null;
   
   // Called to this function when tags are opened 
   function startElements($parser, $name, $attrs)  
   {
      global $tutors, $elements;
      
      if(!empty($name))
      {
         if ($name == 'OFFERNAME') {
            // creating an array to store information
            $tutors []= array();
         }
         $elements = $name;
      }
   }
   
   // Called to this function when tags are closed 
   function endElements($parser, $name) 
   {
      global $elements;
      
      if(!empty($name))
      {
         $elements = null;
      }
   }
   
   // Called on the text between the start and end of the tags
   function characterData($parser, $data) 
   {
      global $tutors, $elements;
      if(!empty($data))
      {
         if ($elements == 'PRODUCTNAME' || $elements == 'CATEGORYNAME' ||  $elements == 'PRICEVALUE' ||  $elements == 'PRICEFROMVALUE')
         {
            $tutors[count($tutors)-1][$elements] = trim($data);
         }
      }
   }
   
   // Creates a new XML parser and returns a resource handle referencing it to be used by the other XML functions. 
   $parser = xml_parser_create(); 
   
   xml_set_element_handler($parser, "startElements", "endElements");
   xml_set_character_data_handler($parser, "characterData");
   
   // open xml file
   if (!($handle = fopen('url aqui', "r"))) {
      die("could not open XML input");
   }
   
   while($data = fread($handle, 4096)) // read xml file
   {
      xml_parse($parser, $data);  // start parsing an xml document 
   }
   
   xml_parser_free($parser); // deletes the parser
   $i=1;
   
   foreach($tutors as $course)
   {
      echo "No - ".$i.'<br/>';
      echo "product Name - ".$course['OFFERNAME'].'<br/>';
      echo "Category - ".$course['CATEGORYNAME'].'<br/>';
      echo "Price - ".$course['PRICEVALUE'].'<br/>';
      echo "Price Fom - ".$course['PRICEFROMVALUE'].'<hr/>'; 
      $i++; 
   }

?>

	 

	xml:

	 

	![Screenshot_2.png.9dc9ebcc76c52cb50a87631731e9acf1.png](https://forum.imasters.com.br/monthly_2017_04/Screenshot_2.png.9dc9ebcc76c52cb50a87631731e9acf1.png)

	 

	Resultado:

	 

	![Screenshot_1.png.9572ac0ce97fda16c2a0ac140263fe8d.png](https://forum.imasters.com.br/monthly_2017_04/Screenshot_1.png.9572ac0ce97fda16c2a0ac140263fe8d.png)

	 

	 

	Como faço para pegar os atributos?