CodingForums.com - fatal error: allowed memory prob

hi guys

im getting this prob:

Code:

Fatal error: Allowed memory size of 12582912 bytes exhausted (tried to allocate 5372 bytes)

when uploading a big image, it's pointed to this func:

PHP Code:


		
			
    function create_thumb($image_file, $name, $thumbDir) {

        $iDimension = getimagesize($image_file); 

        $type = $iDimension['mime'];

        $custom_px = $_POST['maxdimensions'];

        

        if ($type == "image/jpeg") { $tempThumb = imagecreatefromjpeg($image_file); }

        elseif ($type == "image/bmp") { $tempThumb = imagecreatefromwbmp($image_file); }

        elseif($type == "image/png") { $tempThumb = imagecreatefrompng($image_file); }

        elseif ($type == "image/gif") { $tempThumb = imagecreatefromgif($image_file); }



        $width = $iDimension[0]; // uploaded image width

        $height = $iDimension[1]; // uploaded image height

        

        $ratio = $width / $height; // calculate the ratio



        if ($ratio > 1 ) {

            $newW = $custom_px;

            $newH = $custom_px / $ratio;

        } else {

            $newH = $custom_px;

            $newW = $custom_px * $ratio;

        }

    

        $thumb = imagecreatetruecolor($newW, $newH);



        //the resizing is going on here!

        imagecopyresampled($thumb, $tempThumb, 0, 0, 0, 0, $newW, $newH, $width, $height);

    

        //finally, save the image

        imagejpeg($thumb, $thumbDir .'/thumb_' . $name);

        

        // clean up

        imagedestroy($thumb);

        imagedestroy($tempThumb);

    }

any help, thanks.