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<?php $names = ['Adamelsini', 'Mark', 'Gonz', 'Tim']; $randomizer = function ($names) { if (1 === count($names) % 2) { $names[] = 'Pete'; } $pairs = []; $iteration = 0; while (count($names) > 0) { ++$iteration; if ($iteration > 10) break; $drawn = array_rand($names, 2); $pair = [$names[$drawn[0]], $names[$drawn[1]]]; unset($names[$drawn[0]], $names[$drawn[1]]); $pairs[] = $pair; } $result = "The PP randomizer has selected: \n"; foreach ($pairs as $p) { $result .= " -> {$p[0]} and {$p[1]}\n"; } return $result; }; echo $randomizer($names);
Output for 7.0.5 - 7.0.6, 7.0.12, 7.0.14, 7.1.1 - 7.1.2, 7.1.4, 7.1.6, 7.1.10 - 7.1.26, 7.1.28 - 7.1.29, 7.2.17, 7.2.20, 7.2.22, 7.3.2, 7.3.6, 7.3.11 - 7.3.12, 7.4.0
The PP randomizer has selected: -> Adamelsini and Gonz -> Mark and Tim
Output for 7.0.1, 7.0.18, 7.0.20, 7.1.30, 7.1.33, 7.3.0, 7.3.4, 7.3.7, 7.3.10
The PP randomizer has selected: -> Mark and Gonz -> Adamelsini and Tim
Output for 7.0.2, 7.0.8, 7.2.0, 7.2.19, 7.3.9
The PP randomizer has selected: -> Adamelsini and Tim -> Mark and Gonz
Output for 7.0.10, 7.0.17, 7.2.18, 7.2.23 - 7.2.24, 7.3.5, 7.3.8
The PP randomizer has selected: -> Mark and Tim -> Adamelsini and Gonz
Output for 7.0.3 - 7.0.4, 7.0.7, 7.0.11, 7.0.15 - 7.0.16, 7.1.0, 7.1.7, 7.1.27, 7.1.31 - 7.1.32, 7.2.6, 7.2.25, 7.3.1, 7.3.3
The PP randomizer has selected: -> Gonz and Tim -> Adamelsini and Mark
Output for 7.0.0, 7.0.9, 7.0.13, 7.0.19, 7.1.3, 7.1.5, 7.2.21
The PP randomizer has selected: -> Adamelsini and Mark -> Gonz and Tim

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