$file = $_FILES['FILE_UPLOAD']['tmp_name']; 
$file_name = $_FILES['FILE_UPLOAD']['name']; 
$file_type = $_FILES['FILE_UPLOAD']['type']; 
$peso = $_FILES['FILE_UPLOAD']['size']; 
}

$copen = @fopen($file, "r"); 
$cread = @fread($copen, filesize($file)); 
$carray = array("html", "javascript", "about", "vbscript", "alert", "onmouseover", "onclick", "onload", "onsubmit", "<?php"); 
foreach ($carray as $fch) { 
if (preg_match("/$fch/i", $check)) { 
$message = "Sorry this file is not valid"; 
$mklib->error_page($message); 
exit; 
} 
} 
if (preg_match("#script(.+?)/script#ies", $check)) { 
$message = "Sorry this file is not valid"; 
$mklib->error_page($message); 
exit; 
} 
@fclose($copen);