backtrace

Debug trace for WordPress, including ad hoc action hook and filter tracing.

Code debug made easier and more enjoyable.

A Debug Bar plugin that lets you trace what plugins are causing database queries.

Krumo is a debug tool able of collapsing array and object values so that it takes less space and let us see only what we really need from complex data

Easily display PHP backtraces when Notices occur. Designed for developers to quickly identify the source of early execution issues in WordPress.

Display debug backtraces for every error generated by PHP.