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# getrusage

(PHP 3>= 3.0.7, PHP 4 , PHP 5)

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.

範例 1. getrusage() example

`<?php $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) ?>`

See your system's man page on getrusage(2) for more details.

> 注: 此函數不適用於 Windows 平台。

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