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# getrusage

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

getrusage -- Gets the current resource usages

## 说明

array getrusage ( [int who] )

This is an interface to getrusage(2). It gets data returned from the system call.

## 参数

`who`

  If who is 1, getrusage will be called with RUSAGE_CHILDREN.

## 返回值

Returns an associative array containing the data returned from the system call. All entries are accessible by using their documented field names.

## 范例

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) ?>`

## 注释

> 注意: 本函数未在 Windows 平台下实现。

## 参见

Your system's man page on getrusage(2)

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