TCP/UDP Server

Events

QuickStart

Create a TCP Server

<?php
$server = new Swoole\Server("127.0.0.1", 9501, SWOOLE_BASE, SWOOLE_SOCK_TCP);

Update the settings

<?php
$server->set(array(
    'worker_num' => 4, // The number of worker processes
    'daemonize' => true, // Whether start as a daemon process
    'backlog' => 128, // TCP backlog connection number
));

Register callback functions

<?php
$server->on('connect', function() {

});
$server->on('receive', function() {

});
$server->on('close', function() {

});

There are four types of callback functions

Start the server

<?php
$server->start();

Get the server attributes

<?php
$server->manager_pid; // PID of manager process, send SIGUSR1 to this process to reload the application
$server->master_pid;  // PID of master process, send SIGTERM signal to this process to shutdown the server
$server->connections; // The connections established

Catch Exception

The swoole doesn't support the set_exception_handler function.

If there is the logic of throwing exception in your code, it must add the try/catch in the very beginning of callback function.

<?php
$server->on('Timer', function() {
    try {
        //some code
    } catch(Exception $e) {
        //exception code
    }
}

Helper functions

MIME helper functions:

Since version 4.5.0

function swoole_mime_type_add(string $suffix, string $mime_type){}

function swoole_mime_type_set(string $suffix, string $mime_type){}

function swoole_mime_type_delete(string $suffix, string $mime_type){}

function swoole_mime_type_get(string $filename){}

function swoole_mime_type_exists(string $filename){}

void Swoole\Server->getWorkerStatus (): SWOOLE_WORKER_BUSY|SWOOLE_WORKER_IDLE

Since version 4.5.0

Get the status of current worker process.

void Swoole\Server->get(Master|Manager|Worker)Pid (): int

Since version 4.5.0

Get the Pid of Master/Manager/Worker process.

void Swoole\Server->getWorkerId (): int

Since version 4.5.0

Get the Worker ID.