One bundled with Xdebug: php ~/dev/php/xdebug/trunk/contrib/tracefile-analyser.php time-own 5 ... Showing the 5 most costly calls sorted by 'time-own'. Inclusive Own function #calls time memory time memory ------------------------------------------------------------------------------- array_pop 715 1.0252 -139880 1.0252 -139880 preg_match 2986 0.3718 1016336 0.3718 1016336 {main} 1 6.4562 7335704 0.3476 -15198832 next 432 0.2386 0 0.2386 0 count 3302 0.2132 0 0.2123 0

ValaXdebugTools (http://tinyurl.com/vxdebugtools): *trace4func*: Give a function name, get a stack trace for each time it is called. *evaled*: Prints an ordered list of evals, together with what file is responsible for this evil. *whocalls*: Find out what files contain calls to the given function. *whatisincluded*: Find out what files are included and where they are included from.