Hoa is a modular, extensible and structured set of PHP libraries. Moreover, Hoa aims at being a bridge between industrial and research worlds.

Hoa\Zombie

This library allows to transform a process into a zombie: not alive, nor dead!

This is possible only if the program is running behind PHP-FPM (which manages processes for us).

Installation

With Composer, to include this library into your dependencies, you need to require hoa/zombie:

{
    "require": {
        "hoa/zombie": "~2.0"
    }
}

Please, read the website to get more informations about how to install.

Quick usage

To create a zombie, all we have to do is to call the Hoa\Zombie\Zombie::fork method. To kill a zombie, we have the choice between different weapons:

• Hoa\Zombie\Zombie::decapitate, ziip;
• Hoa\Zombie\Zombie::bludgeon, tap tap;
• Hoa\Zombie\Zombie::burn, if you are cold;
• Hoa\Zombie\Zombie::explode, boom;
• Hoa\Zombie\Zombie::cutOff, sausage?

All these methods have been proven. Thus:

// I'm alive!
Hoa\Zombie\Zombie::fork();
// I'm a zombie!
Hoa\Zombie\Zombie::decapitate();
// I'm dead…

But we have to run the script behind FastCGI, that is why we will use the Hoa\Fastcgi library in the following example.

In the Zombie.php file, we write the following instructions:

echo 'I guess I am sick…', "\n";
Hoa\Zombie\Zombie::fork();

// Do whatever you want here, e.g.:
sleep(10);
file_put_contents(
    __DIR__ . DS . 'AMessage',
    'Hello from after-life… or somewhere about!'
);
Hoa\Zombie\Zombie::decapitate();

Then, in the Run.php file, we write:

$fastcgi = new Hoa\Fastcgi\Responder(
    new Hoa\Socket\Client('tcp://127.0.0.1:9000')
);
echo $fastcgi->send(array(
    'GATEWAY_INTERFACE' => 'FastCGI/1.0',
    'REQUEST_METHOD'    => 'GET',
    'SCRIPT_FILENAME'   => __DIR__ . DS . 'Zombie.php'
));

And finally, we can test:

$ php-fpm -d listen=127.0.0.1:9000
$ php Run.php
I guess I am sick…

And 10 seconds after, we will see the AMessage file appear with the content: Hello from after-life… or somewhere about!.

Documentation

Different documentations can be found on the website: http://hoa-project.net/.

License

Hoa is under the New BSD License (BSD-3-Clause). Please, see LICENSE.