Here's a tutorial on some of the problems that PHP developers often encounter, including image processing, micro-blogging integration, form processing, video, and more.
Create Instagram Filters with PHP
Display your favorite Tweets using PHP and JQuery
Making a Page Flip Magazine with Turn.js
Easy Form Generation Using fuelphp
AJAX Contact Form
UCM plugin:pop3/imap Email Ticket System
Photobooth with PHP, JQuery and CSS3
Ajax ' d PHP Login, User Management & Site Security
Simple Document Mananger
Client Photo studio–photography CMS
Solid PHP User Management System
Lite Invoicing System
Freelance Manager
Cms Gecko
Vidplanet Youtube Video Cms
Activity Board Activity Manager
You translate! Website translation System
CodeIgniter ACL User Management
Pro Invoice Maker
Tycoon CRM
PHP Login & User Management
Project Management application PHP & AJAX