... I send out a list of most interesting libraries and apps in the "PHP" section to about 1100 subscribers.
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The Finder component finds files and directories via an intuitive fluent interface.
Convenience wrapper for Symfony's Finder component
Detect potentially malicious PHP files
Adds a columnar view of all your pages (and hierarchical custom post types), similar to the view found in the OS X Finder. Makes it much easier to manage sites with lots of pages. Drag and drop to re-order your pages.
Finder: find files and directories with an intuitive API.
Incomprehensible Finder Refactoring Kata port for PHP
Plugin for Wordpress that provides powerful store locator type functionality for any post type
The new, reworked library to access FACT-Finder with PHP.