PHP code execution profiler and debugger
Advanced PHP Debugger is a full-featured PHP profiler/debugger that
is loaded as a zend_extension. It aims to be an analog of C's gprof
or Perl's Devel::DProf, and provides PHP developers with a number of
additional functions which can be used to obtain internal code
execution details such as timing information, function call tree and
stack backtrace. This is particularly useful for performance profiling
purposes. See pear.php.net/apd for more information.
