You’re in the middle of a project, and need to get everything done as soon as possible. To keep the deadline and still have a life, you would better to collect this awesome library on your fingertip. By knowing this library capability, then you’ll know when to use any of them.

Charting Library

You can create simple graph or chart using GD library on PHP, but to help you create more complex chart, then you’ll need this awesome library.

1. pChart - a PHP class to build charts.
2. Libchart - Simple PHP chart drawing library.
3. JpGraph - Object-oriented graph creating library for PHP.
4. Open Flash Chart - Flash based charting library.

RSS Parser Library

Parsing a RSS is not a fun thing to do, so you would better put this library and get everything done.

1. MagpieRSS - RSS for PHP.
2. SimplePie - Super-fast, easy-to-use, RSS and Atom feed parsing in PHP.

Thumbnail Generator

Just another way to create thumbnail.

1. phpThumb - The PHP thumbnail creator.

Payment

Dealing with an e-commerce site? Need payment solution? Don’t worry. Let this library help you.

1. PHP Payment Library - PHP Payment Library for Paypal, Authorize.net and 2Checkout (2CO)

OpenID

Just in case you need to implement OpenID to your project.

1. PHP-OpenID - OpenID implementation in PHP.

Database Abstraction/ORM

Writing SQL Query isn’t really exciting. These library let you smile more.

1. ADOdb - Database abstraction library for PHP.
2. Doctrine - Object relational mapper (ORM) for PHP 5.2.3+ that sits on top of a powerful database abstraction layer (DBAL).
3. Propel - Object-Relational Mapping framework for PHP5
4. Outlet - an Open source object-to-relational mapping tool for PHP.

PDF Generator

1. FPDF - PHP class which allows to generate PDF files with pure PHP.

Excel

Need to generate your report in Excel file. Well, you better have this library on your side.

E-Mail

Don’t like PHP mail function? Put this library on your project, and you have more features when dealing with email.