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<?php function array_group(callable $eq, array $xs) { $groupedXs = []; $grouped = [$xs[0]]; if ($eq($xs[0], $xs[1])) { $grouped[] = $xs[1]; } else { $groupedXs = $grouped; $grouped = [$xs[1]]; } return $groupedXs; } var_dump(array_group(function ($a, $b) { }, [[1, 'sold'], [2, 'registered'], [3, 'sold']]));
Output for git.master, git.master_jit, rfc.property-hooks
array(1) { [0]=> array(2) { [0]=> int(1) [1]=> string(4) "sold" } }

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