Todo.txt - Track your tasks and projects in a plain text file, todo.txt. A todo.
PHPmaker - PHPMaker is a powerful automation tool that can generate a full set of PHP quickly from MySQL, PostgreSQL, Oracle, Microsoft Access, Microsoft SQL Server and SQLite databases.
Task Coach - Task Coach is a simple open source todo manager to keep track of personal tasks and todo lists.
P4A - Php For Applications - PHP5 RAD Framework based on Zend Framework.
Strikethru - Strikethru is a kind of to-do list notebook for managing work lists and staying updated with the important tasks.
MT Backend - MT backend is a PHP control panel solution for websites.