http://shonm.com/a-simple-job-queue-in-php/

Customer.php

<?php

class Customer {
    protected $machine;

    public function __construct($machine) {
        $this->machine = $machine;
    }

    public function purchase($shelf) {
        return $this->machine->rPop($shelf);
    }
}

$machine = new Redis;
$machine->connect('127.0.0.1');

$customer = new Customer($machine);
$pop = $customer->purchase($argv[1]);

echo 'Got a ' . $pop . '!' . PHP_EOL;

Employee.php

<?php

class Employee {
    protected $machine;

    public function __construct($machine) {
        $this->machine = $machine;
    }

    public function stock($shelf, $pop) {
        return $this->machine->lPush($shelf, $pop);
    }
}

$machine = new Redis;
$machine->connect('127.0.0.1');

$employee = new Employee($machine);
$pop = $employee->stock($argv[1], $argv[2]);

echo 'Stocked a ' . $argv[1] . ' on the ' . $argv[2] . ' shelf' . PHP_EOL;