The IP PHP Class provides a comprehensive set of functions for handling and manipulating IP addresses (IPv4 only). It includes creation, validation, block information, and checking of IP addresses within CIDR blocks.
Image PHP Class is a PHP class for manipulating images. It can either load an image from a file or build an image directly from a binary string (such as an image stored in a database), you can then scale, resize, and crop the image.
LDAP Auth Group is a simple lightweight PHP extension class for LDAP Auth. It allows you to authenticate users and also verify that they are within a specific group. It works for both LDAP (OpenLDAP) and also Active Directory.