Runtime Configuration

The behaviour of these functions is affected by settings in php.ini.

Xhprof Configure Options

Name	Default	Changeable	Changelog
xhprof.output_dir	""	PHP_INI_ALL

Here's a short explanation of the configuration directives.

xhprof.output_dir string

Directory used by the default implementation of the iXHProfRuns interface (namely, the XHProfRuns_Default class) for storing XHProf runs.