[PHP & GD] What broke this?

[iDunk]


function resize_jpg($filename) {
   
   // Set a maximum height and width
   $width = 165;
   $height = 165;

   // Content type
   header('Content-type: image/jpeg');

   // Get new dimensions
   list($width_orig, $height_orig) = getimagesize($filename);

   if ($width && ($width_orig < $height_orig)) {
       $width = ($height / $height_orig) * $width_orig;
   }   else {
       $height = ($width / $width_orig) * $height_orig;
   }

   // Resample
   $image_p = imagecreatetruecolor($width, $height);
   $image = imagecreatefromjpeg($filename);
   imagecopyresampled($image_p, $image, 0, 0, 0, 0, $width, $height, $width_orig, $height_orig);

   imagejpeg($image_p, null, 100);

 }



If I output the JPG to a file instead of to the browser, it works fine. If I try and output the JPG to the browser, it shows the "broken image" icon. :-\ This exact script used to work on my XAMPP machine.

-iDunk

[Charles Stover]

Turn on error displays, click "View source" of the JPEG file (or remove the JPEG Content-Type header), and see what the error is. It can be any number of things.

[iDunk]

No error is displayed. :-\ I set the error_reporting to E_ALL and I did the ini_set("display_errors", TRUE) thing. :-\

-iDunk

[Charles Stover]

Hmm. Well, do
echo $width, 'x', $height, 'x', $width_orig, 'x', $height_orig;
And see if any are erroneously set as 0 or summat.

The only other thing I see is imagejpeg(). I never use the second or third parameters. Maybe try without them? Or check to see if imagecopyresampled is missing a parameter or summat.

Do you have access to the INI file? On my old localhost, no matter what I set via ini_set, it wouldn't display errors ever (I never tried to edit the php.ini file for some reason). I noticed on my new one that display_errors was false my default, so I changed that and see errors fine now.