Open-Source bugs tracking system?

Question

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What bug tracking software do you use?

Better than BugZilla open-source based bugs tracking system? I need a platform that supports a rich API (especially for PHP), unlike what BugZilla provides. :S

Answer 1

Trac

Answer 2

You have Trac. Though its done in Python, you have some ways to access it with PHP.

It integrates beautifully with svn.

Trac is a web-based software project management and bug/issue tracking system emphasizing ease of use and low ceremony. It provides an integrated Wiki, an interface to version control systems, and a number convenient ways to stay on top of events and changes within a project.

Trac is distributed under the modified BSD License.

Answer 3

No doubt.. For me it is mantis

Please check its feature list.

You can also check this wikipedia article which provides detailed comparison between different- different bug tracking systems.