getrusage

(PHP 3>= 3.0.7, PHP 4 >= 4.0.0)

getrusage -- Gets the current resource usages

Description

array getrusage ( [int who])

This is an interface to getrusage(2). It returns an associative array containing the data returned from the system call. If who is 1, getrusage will be called with RUSAGE_CHILDREN.

All entries are accessible by using their documented field names.
See your system's man page on getrusage(2) for more details.