sys_getloadavg

(PHP 5 >= 5.1.3)

sys_getloadavg — Gets system load average

说明

array sys_getloadavg ( void )

Returns three samples representing the average system load (the number of processes in the system run queue) over the last 1, 5 and 15 minutes, respectively.

返回值

Returns an array with three samples (last 1, 5 and 15 minutes).

范例

Example#1 A sys_getloadavg() example


<?php
$load = sys_getloadavg();
if ($load[0] > 80) {
    header('HTTP/1.1 503 Too busy, try again later');
    die('Server too busy. Please try again later.');
}
?>

注释

Note: 本函数未在 Windows 平台下实现。