Hello.

I try use  PHP File Uploader

I write:

    require_once BASE_PATH . "/library/phpuploader/include_phpuploader.php";
    $uploader=new PhpUploader();
    $uploader->Name="pdf_upload";
    $uploader->MultipleFilesUpload=true;
    $uploader->UploadUrl='/testupload.php';
    $uploader->Render();

And in testupload.php code from FAQ:

require_once "library/phpuploader/include_phpuploader.php";
$uploader=new PhpUploader();

$fp = fopen('upl_log.txt', 'w');

$test = fwrite($fp, 'Go script');

      $mvcfile=$uploader->GetValidatingFile();  
 
    if($mvcfile->FileName=="accord.bmp")  
    {  
     $uploader->WriteValidationError("My custom error : Invalid file name. ");  
         exit(200);  
    }  
 
    //USER CODE:  
 
    $targetfilepath= "uploads/myprefix_" . $mvcfile->FileName;  
    if( is_file ($targetfilepath) )  
     unlink($targetfilepath);  
    $mvcfile->MoveTo( $targetfilepath );  
 
    $uploader->WriteValidationOK();

 

when I try to load an image get the error message:

Server side exception, failed to upload 228526_10150250594014978_1050049353_n.jpg
Debug Information:
pdf_upload : Session expired! Please refresh the page and try again.

What i do wrong? How can fix this?