PHP套接字客户端循环迭代

Question

I want to implement a client socket in PHP.

The socket type is TCP / IP and runs a full-duplex channel. The client must send requests to the server every second, so it must be run in a loop.

Do I have to recreate and connect to the socket for each request? Or is it better to create and connect to the socket outside by the loop and then manage the communication?

<?php
   while (true) {
      //management of the pid here
      //create the socket
      $socket = socket_create (AF_INET, SOCK_STREAM, 0);
      //send the request
      $sent = socket_write ($socket, <query>, <length>);
      //get the answer
      $response = socket_read ($socket, 1024);
      //close the socket
      socket_shutdown ($socket, 2);
      usleep (500);/ / wait remote host
      socket_close ($socket);
      sleep (1);
   }
?>

I have already implemented the socket connection outside the loop and the management of requests inside.

But the connection remains active for a few minutes then returns an error on the endpoint connection.

Is it necessary to use socket_bind in this situation?

Thank you.

Answer 1

You should connect the socket once outside the loop, then use it for the entire application session. Disconnect the socket when the loop finishes.

Answer 2

创建套接字会消耗大量资源，并且由于您没有连接到多个点，因此应在循环外部创建套接字。