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Xdebug

Xdebug is a PHP extension which provides debugging and profiling capabilities. It uses the DBGp debugging protocol.

The debug information that Xdebug can provide includes the following:

  • stack and function traces in error messages with:

:*full parameter display for user defined functions

:*function name, file name and line indications

:*support for member functions

  • memory allocation
  • protection for infinite recursions

Xdebug also provides:

  • profiling information for PHP scripts
  • code coverage analysis
  • capabilities to debug your scripts interactively with a debugger front-end.

Xdebug is also available via the PECL.