Tip-Top ! documentation

Tip-Top ! Documentation


Tip-Top is a PHP micro-library to set timers and timeouts in your PHP code. It is based on SIGALRM signal, so it requires both posix and pcntl extensions.


Due to PHP, timers and timeout may be triggered lately in case you use blocking calls like sleep(5).

A common workaround for sleep is to iterate 1 seconds sleeps : for ($i=0; $i!=5; $i++;) {sleep(1);}.


  • Neutron\TipTop\Clock requires you declare ticks in the script you’re running.
  • Neutron\TipTop\Clock may not work as expected with blocking calls (try it before)


We rely on composer to use this library. If you do no still use composer for your project, you can start with this composer.json at the root of your project:

    "require": {
        "neutron/tip-top": "0.1.x-dev"

Install composer :

# Install composer
curl -s http://getcomposer.org/installer | php
# Upgrade your install
php composer.phar install

You now just have to autoload the library to use it :

require 'vendor/autoload.php';

This is a very short intro to composer. If you ever experience an issue or want to know more about composer, you will find help on their website http://getcomposer.org/.

Basic Usage

You MUST declare ticks in the script where you’re using Neutron\TipTop\Clock, it is mandatory for the clock to work.

use Neutron\TipTop\Clock;

// mandatory for the clock to work

$clock = new Clock();

// trigger a callback every second
$clock->addPeriodicTimer(1, function () { echo "BOOM ! I'm triggered every second !\n"; });

// trigger a callback every ten seconds, five times
$clock->addPeriodicTimer(10, function () { echo "Doubidou\n"; }, 5);

// trigger a callback one time, in 3 seconds
$signature = $clock->addTimer(3, function () { echo "BOOM !\n"; }, 1);

// remove a timer identified by a signature

// do your job
$n = 10;
while ($n > 0) {

Handling Exceptions

Report a bug

If you experience an issue, please report it in our issue tracker. Before reporting an issue, please be sure that it is not already reported by browsing open issues.

Ask for a feature

We would be glad you ask for a feature ! Feel free to add a feature request in the issues manager on GitHub !


You find a bug and resolved it ? You added a feature and want to share ? You found a typo in this doc and fixed it ? Feel free to send a Pull Request on GitHub, we will be glad to merge your code.

Run tests

Tip Top ! relies on PHPUnit for unit tests. To run tests on your system, ensure you have PHPUnit installed, and, at the root of the project, execute it :



Tip Top ! has been written by Romain Neutron based on a Bulat Shakirzyanov gist.


RabbitMQ Management API client is licensed under the MIT License