YouTube Video API

Google Chart for PHP 5

Generate chart images using Google chart service

YouTube Video API

Retrieve information about YouTube videos
ddbb

MySQL database abstraction access layer

eoPaginator

Generate navigation for listings split among pages

Display CAPTCHA images and validate forms

DEA CAPTCHA

Display CAPTCHA images and validate forms

Matrix new

Perform operations to manipulate matrices

BarcodeImages

Generates barcode images using TTF fonts
HTML 5

Generate article pages using HTML 5 syntax

Memcache Manager

Store and retrieve data from Memcache servers
Quadratic Equation

Solve quadratic equations

Imager

Perform several operations to manipulate images

HTML 5

Generate article pages using HTML 5 syntax

Memcache Manager

Store and retrieve data from Memcache servers

Twitter Updater

Update and retrieve the statuses of a Twitter user

AJAX Login Module

Authenticate users without reloading a login page

Retrieve data from CSV file into an array

Bounded Queue

Manage queue with a limited number of elements

CSV to Array

Retrieve data from CSV file into an array

Regexp store

Apply regular expressions from a MySQL database

PHP Oracle Grid

Display Oracle query results in an HTML table

Regexp Builder

Build regular expressions programmatically

Affilinet Product Service

Get product information using Affili.net API

BarCode Images

Generate bar code images using code 39

Manage objects stored MySQL database dynamically

StringList Class

Manage lists of strings

Nested Set DB Table

Manage nested sets of data stored in a database

Ladder PHP

Manage objects stored MySQL database dynamically
js color picker
A great script from jscolor.com which makes it much easier for your users to pick colors for input fields on your web page/web application.
OFX Parser

Parse and extract financial records from OFX files

Multi-byte Keyword Generator

Extract meta keywords from multi-byte texts

Translate application texts using Google Translate

Image Manipulation Class

Manipulate and convert images from files

PHP Website Multi Language

Translate application texts using Google Translate

Create XML documents from arrays using SimpleXML

Simple XML Generator

Create XML documents from arrays using SimpleXML

HN_htusers

Manage Apache user and group authentication files

MySQLi access

MySQL database access using MySQLi

CSS Dispatcher

Compose CSS style sheets from multiple templates
SQL Query Generator

Generate SQL queries from lists of parameters

Multi Singleton

Implementation of the singleton design pattern

Assemble variables to generate a query string

PHP MSSQL Dump

Dump a Microsoft SQL server database

QueryString

Assemble variables to generate a query string

Shopping Cart AJAX

Add products to a shopping cart using AJAX

Oracle

Oracle database access layer

Secure SMTP client

Send messages via SMTP server with authentication

iGoogle-like Drag & Drop Portal v2.0
This is a great script created by Michel Hiemstra. It's an iGoogle like portal script similar to the Dragable RSS boxes from this site.

Executing multiple SQL statements stored in files

Execute MySQL queries read from files