php 检测服务器状态的实现代码

本节分享的这段php代码，可以根据域名，采用fsockopen的方法来检测服务器的当前状态。

代码：

<?
/**
* 检测服务器状态
*/
# Domain Name
$domainName = "http://www.jb200.com" ;

#My Function
function DomainCheck($domainName){
    $startTime = microtime(true);
    $openDomain = fsockopen ($domainName, 80, $errno, $errstr, 10);
    $finishTime  = microtime(true);
    $serverStatus    = 0;

    if (!$openDomain) $serverStatus = -1;  
    else {
        fclose($openDomain);
        $status = ($finishTime - $startTime) * 1000;
        $serverStatus = floor($serverStatus);
    }
    return $serverStatus;
}

$serverStatus = DomainCheck($domainName);

# Results...
if ($serverStatus != -1) {
echo "Server is seemed off" ;
} else {
echo "Server is running well" ;
} 
?>