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.
Example 1. Getrusage Example
$dat = getrusage(); echo $dat["ru_nswap"]; # number of swaps echo $dat["ru_majflt"]; # number of page faults echo $dat["ru_utime.tv_sec"]; # user time used (seconds) echo $dat["ru_utime.tv_usec"]; # user time used (microseconds)