How to identify sender from websocket (PHP)

Question

I try to build a website with WebSocket (JS+PHP) and i would like to get the socket from the sender. For example, if a client 'A' send a message to my server, how can I get the socket from the client 'A'. I've search on google but the only thing i found is that socket_select wait for a communication and return the number of socket changed, but i can't get the socket itself.

My PHP code is below

<?php

$host = 'localhost'; //host
$port = '9000'; //port
$null = NULL; //null var
//Create TCP/IP sream socket
$socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
//reuseable port
socket_set_option($socket, SOL_SOCKET, SO_REUSEADDR, 1);

//bind socket to specified host
socket_bind($socket, 0, $port);

//listen to port
socket_listen($socket);

//create & add listning socket to the list
$sockets = array($socket);
$users = array();

$validActions = array('init');

//start endless loop, so that our script doesn't stop
while (true) {
    //manage multipal connections
    $changed = $sockets;
    //returns the socket resources in $changed array
    socket_select($changed, $null, $null, 0, 10);

    //check for new socket
    if (in_array($socket, $changed)) {
        $socket_new = socket_accept($socket); //accept new socket
        $sockets[] = $socket_new; //add socket to client array

        $header = socket_read($socket_new, 1024); //read data sent by the socket
        perform_handshaking($header, $socket_new, $host, $port); //perform websocket handshake

        socket_getpeername($socket_new, $ip); //get ip address of connected socket
        $response = mask(json_encode(array('type' => 'system', 'message' => $ip . ' connected'))); //prepare json data
        send_message($response); //notify all users about new connection
        //make room for new socket
        $found_socket = array_search($socket, $changed);
        unset($changed[$found_socket]);
    }

    $received_text = unmask($buf); //unmask data
    $received_msg = json_decode($received_text); //json decode 


    //check for any incomming data
    while (socket_recv($changed_socket, $buf, 1024, 0) >= 1) {
        $received_text = unmask($buf); //unmask data
        $tst_msg = json_decode($received_text); //json decode
        // I HAVE TO GIVE $socket FROM THE CLIENT TO THE process() FUNCTION
        process($received_msg);
        ... MORE CODE ....
    }
}
// close the listening socket
socket_close($sock);

I found that i can get the socket from the client at the connection with socket_accept but after is there a way to get the socket from sender after that? — X4V18, Sep 05 '14 at 13:33

score 0 · Answer 1 · answered Sep 05 '14 at 13:48

0

I think that I have to use socket_select, I've read the documentation but i still don't find to right way to get the socket from the sender of a message...

answered Sep 05 '14 at 13:48

X4V18

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How to identify sender from websocket (PHP)

1 Answers1