PhpSocket

One way (server2client) simple WebSocket PHP library

Installation (using composer)

composer require gevman/s2c-websocket

Listener methods

Constructor(string $host, int $port, string $path, string $identityParam, bool $ssl)

Create Listener

• $host - server ip or domain
• $port - port for server socket
• $path - default path for socket connection
• $identityParam - parameter to resolve identity
• $ssl - if true will be used wss protocol, otherwise ws protocol

void listen()

Start listening

void onUpdate(function(array $AllIdentities) {/ /})

Triggers when user connected or disconnected

• $AllIdentities - List of all identities along with params

void onClientConnect(function(array $identity) {/ /})

Triggers when user connected

• $identity - Array of identity params of connected user

void onClientDisconnect(function(array $identity) {/ /})

Triggers when user disconnected

• $identity - Array of identity params of disconnected user

void onMessage(function(array $identities, string $message) {/ /})

Triggers when server sends message

• $identities - List of identities which will receive message
• $message - message content

void onError(function(Exception $e) {/ /})

Triggers on error

• $host - Exception object of error

Example

Client side (JavaScript)

var webSocket = new WebSocket('ws://example.com:8080/socket/test/id/1/username/test/some-param/some-value');

Server side (PHP)

require __DIR__.'/vendor/autoload.php';

$listener = new \Gevman\PhpSocket\Listener('example.com', 8080, '/socket/test', 'id', false);

$listener->events->onError(function(Exception $e) {
    printf('error: %s in %s at line %s', $e->getMessage(), $e->getFile(), $e->getLine());
});

$listener->events->onClientConnect(function($identity) {
    printf("Client connected: %s\n\n", $identity['id']);
});

$listener->events->onClientDisconnect(function($identity) {
    printf("Client disconnected: %s\n\n", $identity['id']);
});

$listener->events->onMessage(function($identities, $message) {
    printf("new message: %s to %s\n\n", $message, implode(',', array_column($identities, 'id')));
});

$listener->events->onUpdate(function($AllIdentities) {
    file_put_contents('online-users.txt', array_column($AllIdentities, 'id'));
});

$listener->listen();

Notifier methods

Constructor(string $host, int $port)

Create Notifier

• $host - server ip or domain
• $port - port of server socket

bool notify(mixed $message, mixed $to)

Send message to server which will be delivered to listed identities

• $message - Message to send
• $to - Identity or list identities to be notified, if empty will be notified all identities

Example

Server side (PHP)

require __DIR__.'/vendor/autoload.php';

$notifier = new \Gevman\PhpSocket\Notifier('example.com', 8080);
$notifier->notify(['something' => 'happened', 'new' => 'message'], 1);

Client side (JavaScript)

var webSocket = new WebSocket('ws://example.com:8080/socket/test/id/1/username/test/some-param/some-value');
webSocket.onmessage(function (message) {
    var data = JSON.parse(message.data);
    console.log(data.something);
    console.log(data.new);
});

For https sites You need use wss connection, For this You need pass true for last parameter of Listener constructor and use Apache ProxyPass in Your apache config

ProxyPass /wss ws://example.com:8080