Secret Santa matcher with PHP Generator

santa.php

<?php
/**
 * Secret Santa Generator - powered by PHP Generators for the lolz.
 */

$players = [
    "xx@jolicode.com",
    "spam@jolicode.com",
    "nop@jolicode.com",
    "foo@jolicode.com",
];

function giveMeABuddy($players) {
    // Make sure results are not predictable
    shuffle($players);
    $players = array_values($players);

    foreach ($players as $key => $player) {
        $santa = $players[(count($players)-1) - $key];

        yield $player => $santa;
    }
}

foreach (giveMeABuddy($players) as $player => $santa)
{
    printf("%s is the santa of %s\n", $santa, $player);
}

https://gist.github.com/paulmallet/3221afc9ccf0ccbbfb85