本文实例讲述了php实现TCP端口检测的方法。分享给大家供大家参考。具体如下：
该程序可以确认当前端口是否可用：
<?php
class Health {
public static $status;
public function __construct()
{
}
public function check($ip, $port){
$sock = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
socket_set_nonblock($sock);
socket_connect($sock,$ip, $port);
socket_set_block($sock);
self::$status = socket_select($r = array($sock), $w = array($sock), $f = array($sock), 5);
return(self::$status);
}
public function checklist($lst){
}
public function status(){
switch(self::$status)
{
case 2:
echo "Closed\n";
break;
case 1:
echo "Openning\n";
break;
case 0:
echo "Timeout\n";
break;
}
}
}
$ip='192.168.2.10';
$port=80;
$health = new Health();
$health->check($ip, $port);
$health->status();
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