Hi, I made a little gallery script a while ago that automaticly created thumbnails from the images I uploaded. It worked great untill I tried to upload images that was over 1mb or something :/

Does anyone know how to do this? (I was using the newest GD lib btw)

On most servers there is a maximum execution time of 30 seconds. Resizing big images takes a lot of time, so I wouldn't be surprised if your script wasn't ready when the server terminated it. To change this time, you have 2 possibilities:

through .htaccess for php:

AddType application/x-httpd-php .php
<IfModule mod_php4.c>
  php_value max_execution_time 600
  php_value max_input_time 600
</IfModule>

Possibly, you'll have to use a different name instead of "mod_php4.c".

In the script itself:

PHP Code:

<?php
  $sec=600; #max execution time in seconds, 10 minutes in this case
  set_time_limit($sec);
?>

This doesn't work in Safe Mode however.

If that doesn't help, maybe you could try to use ImageMagick, which is probably installed on your server.