&reftitle.setup;
&reftitle.required;

Although not required, xhprof includes an interface that's written in PHP. It's used to save and display the profiled data in a usable way, where viewing is done via a web browser. So, a PHP enabled web server will likely make the xhprof experience more useful.

There's also a fork of the GUI interface at &url.xhprof.gui.fork1;

&reference.xhprof.configure; &reference.xhprof.ini;