Quick Help

[Liberation]

Hey

Ive got 'The Grand Tutorial' script and im having trouble with the upload images when adding a tutorial to site.

The code I have is:

function imgsizemod($image = '', $text = ''){
    
        if($text == 'jpg' || $text == 'jpeg'){
            $img = imagecreatefromjpeg($image);
        } elseif($ext == 'png'  || $text =='png'){
            $img = imagecreatefrompng($image);
        } else {
            return basename($image);
        }
        
        $xw = imagesx($img);
        $yw = imagesy($img); 

And for some reason, that isnt working. +REP for all help
Thanks