How to implement TCP port detection in php_PHP tutorial

How to implement TCP port detection in php

This article describes the method of implementing TCP port detection in php. Share it with everyone for your reference. The details are as follows:

This program can confirm whether the current port is available:

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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 "Closedn"; break; case 1: echo "Openningn"; break; case 0: echo "Timeoutn"; break; } } } $ip='192.168.2.10'; $port=80; $health = new Health(); $health->check($ip, $port); $health->status();

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<🎜>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::$status)<🎜> <🎜>{<🎜> <🎜>case 2:<🎜> <🎜>echo "Closedn";<🎜> <🎜>break;<🎜> <🎜>case 1:<🎜> <🎜>echo "Openningn";<🎜> <🎜>break;<🎜> <🎜>case 0:<🎜> <🎜>echo "Timeoutn";<🎜> <🎜>break;<🎜> <🎜>}<🎜> <🎜>}<🎜> <🎜>}<🎜> <🎜>$ip='192.168.2.10';<🎜> <🎜>$port=80;<🎜> <🎜>$health = new Health();<🎜> <🎜>$health->check($ip, $port); $health->status();

http://www.bkjia.com/PHPjc/977619.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/977619.htmlTechArticleHow to implement TCP port detection in php. This article describes how to implement TCP port detection in php. Share it with everyone for your reference. The details are as follows: This program can confirm whether the current port is available...