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How to implement TCP port detection in php_PHP tutorial

WBOY
WBOYOriginal
2016-07-13 09:58:371048browse

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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<๐ŸŽœ>class Health {<๐ŸŽœ> <๐ŸŽœ>public static $status;<๐ŸŽœ> <๐ŸŽœ>public function __construct()<๐ŸŽœ> <๐ŸŽœ>{<๐ŸŽœ> <๐ŸŽœ>}<๐ŸŽœ> <๐ŸŽœ>public function check($ip, $port){<๐ŸŽœ> <๐ŸŽœ>$sock = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);<๐ŸŽœ> <๐ŸŽœ>socket_set_nonblock($sock);<๐ŸŽœ> <๐ŸŽœ>socket_connect($sock,$ip, $port);<๐ŸŽœ> <๐ŸŽœ>socket_set_block($sock);<๐ŸŽœ> <๐ŸŽœ>self::$status = socket_select($r = array($sock), $w = array($sock), $f = array($sock), 5);<๐ŸŽœ> <๐ŸŽœ>return(self::$status);<๐ŸŽœ> <๐ŸŽœ>}<๐ŸŽœ> <๐ŸŽœ>public function checklist($lst){<๐ŸŽœ> <๐ŸŽœ>}<๐ŸŽœ> <๐ŸŽœ>public function status(){<๐ŸŽœ> <๐ŸŽœ>switch(self::$status)<๐ŸŽœ> <๐ŸŽœ>{<๐ŸŽœ> <๐ŸŽœ>case 2:<๐ŸŽœ> <๐ŸŽœ>echo "Closedn";<๐ŸŽœ> <๐ŸŽœ>break;<๐ŸŽœ> <๐ŸŽœ>case 1:<๐ŸŽœ> <๐ŸŽœ>echo "Openningn";<๐ŸŽœ> <๐ŸŽœ>break;<๐ŸŽœ> <๐ŸŽœ>case 0:<๐ŸŽœ> <๐ŸŽœ>echo "Timeoutn";<๐ŸŽœ> <๐ŸŽœ>break;<๐ŸŽœ> <๐ŸŽœ>}<๐ŸŽœ> <๐ŸŽœ>}<๐ŸŽœ> <๐ŸŽœ>}<๐ŸŽœ> <๐ŸŽœ>$ip='192.168.2.10';<๐ŸŽœ> <๐ŸŽœ>$port=80;<๐ŸŽœ> <๐ŸŽœ>$health = new Health();<๐ŸŽœ> <๐ŸŽœ>$health->check($ip, $port); $health->status();
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