테스트 툴
- PHPUnit
http://pear.php.net/package/PHPUnit
- PHPUnit2
http://pear.php.net/package/PHPUnit2
- SimpleTest for PHP
http://www.lastcraft.com/simple_test.php
- PHPCoverage
http://developer.spikesource.com/wiki/index.php/Projects:phpcoverage
- Xdebug
http://xdebug.org/
- DBG
http://dd.cron.ru/dbg/