Stefano Mallozzi Professional web development

Since PHP 5.2.x it may happen to find unexpected empty output on regular expressions (preg_replace, preg_match, etc...) when parsing very long strings. This bug is caused by a restrictive limit of pcre.backtrack_limit directive. The default value is 100000, so it can handle strings up to 100000 characters. It would make more sense to change the limit to a higher value, even 20MB. The same change can be applied to the pcre.recursion_limit directive.

Both directives can be changed in the php.ini file:

pcre.backtrack_limit=20971520
pcre.recursion_limit=20971520

or by ini_set():

ini_set('pcre.backtrack_limit', 20971520);
ini_set('pcre.recursion_limit', 20971520);

The Node images project is a Drupal module to create photogalleries. It allows users to assign images to content and view those images in a gallery. Users may upload images inline in the content creation page, and then manage them in a specific page, to edit the current images or upload new ones.
Here are the main features of this module:

• Advanced management of uploaded images (upload new images, choose the ones to list, change the visualization order).
• Inline upload from the content creation page.
• Ajax photogallery, showing thumbnail of uploaded images, and the current images in a Polaroid format.
• Advanced upload settings (image size, max number of images per content, md5 file names, selection of content types to which associate images).
• Fine grained permissions (add images to any content type or only specific ones, edit/delete all images or only own iamges).
• Internationalization support for images description, through the i18strings module (included in the Internationalization package): image descriptions are available as translatable strings in the translate interface.

Photogallery demo: Pictures of Gaeta