PHP implementation of TCP port detection method, PHP implementation of TCP port _php tutorial

PHP implementation of TCP port detection method, PHP implementation of TCP port

This paper describes the method of implementing TCP port detection in PHP. Share to everyone for your reference. Specific as follows:

The program can confirm that the current port is available:

<?phpclass 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 ();

I hope this article is helpful to everyone's PHP programming.

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