PHP socket server send and receive data implementation code

Source: Internet
Author: User
Tags php script
The code is as follows Copy Code

/*socket send and receive data
@host (string) socket server IP
@post (int) port
@str (string) the data to send
@back 1|0 socket end has data return

Return true|false| server-side Data
*/
Function sendsocketmsg ($host, $port, $str, $back =0) {
    $socket = Socket_create (af_inet,sock_stream,0);
    if ($socket < 0) return false;
    $result = @socket_connect ($socket, $host, $port);
    if ($result = = false) return false;
    socket_write ($socket, $str, strlen ($STR));
   
    if ($back!=0) {
        $input = Socket_read ($socket, 1024);
        socket_close ($socket);   
         return $input;
   }else{
        socket_close ($socket);    
        return true;   
   }    
}

The second parameter of the

    socker_read Specifies the number of bytes to read, which you can use to limit the size of the data being fetched from the client.
    Note: The Socket_read function reads the shell-side data until it meets n,t or characters, which the PHP script regards as the end character of the input.

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