php實現TCP端口檢測的方法

本文實例講述了php實現TCP端口檢測的方法。分享給大家供大家參考。具體如下：

該程序可以確認當前端口是否可用：

<?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();

希望本文所述對大家的php程序設計有所幫助。