code hinting may not work until you fix this error

Pessoal no meu Insert php esta dando esse erro ---> code hinting may not work until you fix this error <---- será que vcs poderiam me ajudar? fala que é na linha 82, ai vai o código.

Desde já agradeço.

<?php
if (!function_exists("GetSQLValueString")) {
function GetSQLValueString($theValue, $theType, $theDefinedValue = "", $theNotDefinedValue = "")

 if (PHP_VERSION < 6) {
 $theValue = get_magic_quotes_gpc() ? stripslashes($theValue) : $theValue;
 }

 $theValue = function_exists("mysql_real_escape_string") ? mysql_real_escape_string($theValue) : mysql_escape_string($theValue);

 switch ($theType) {
 case "text":
 $theValue = ($theValue != "") ? "'" . $theValue . "'" : "NULL";
 break;
 case "long":
 case "int":
 $theValue = ($theValue != "") ? intval($theValue) : "NULL";
 break;
 case "double":
 $theValue = ($theValue != "") ? doubleval($theValue) : "NULL";
 break;
 case "date":
 $theValue = ($theValue != "") ? "'" . $theValue . "'" : "NULL";
 break;
 case "defined":
 $theValue = ($theValue != "") ? $theDefinedValue : $theNotDefinedValue;
 break;
 }
 return $theValue;
}
}

$editFormAction = $_SERVER['PHP_SELF'];
if (isset($_SERVER['QUERY_STRING'])) {
 $editFormAction .= "?" . htmlentities($_SERVER['QUERY_STRING']);
}

if ((isset($_POST["MM_insert"])) && ($_POST["MM_insert"] == "editando")) {
 $insertSQL = sprintf("INSERT INTO sobre (texto) VALUES (%s)",
 GetSQLValueString($_POST['textarea'], "text"));

 mysql_select_db($database_config, $config);
 $Result1 = mysql_query($insertSQL, $config) or die(mysql_error());

 $insertGoTo = "Admin.php";
 if (isset($_SERVER['QUERY_STRING'])) {
 $insertGoTo .= (strpos($insertGoTo, '?')) ? "&" : "?";
 $insertGoTo .= $_SERVER['QUERY_STRING'];
 }
 header(sprintf("Location: %s", $insertGoTo));
}

if(isset (!function_exists("GetSQLValueString")) {

$insertGoTo = "Admin.php";
 if (isset($_SERVER['QUERY_STRING'])) {
 $insertGoTo .= (strpos($insertGoTo, '?')) ? "&" : "?";
 $insertGoTo .= $_SERVER['QUERY_STRING'];
 }
 header(sprintf("Location: %s", $insertGoTo));
}
?>