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<?php function generate(int $elementsCount, int $maxValue, array $current = []): \Generator { for ($value = 1; $value <= $maxValue; $value++) { yield [...$current, $value]; } if ($elementsCount > 1) { for ($value = 1; $value <= $maxValue; $value++) { yield from generate($elementsCount - 1, $maxValue, [...$current, $value]); } } } print_r(iterator_to_array(generate(3, 3), false));
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [0] => Array ( [0] => 1 ) [1] => Array ( [0] => 2 ) [2] => Array ( [0] => 3 ) [3] => Array ( [0] => 1 [1] => 1 ) [4] => Array ( [0] => 1 [1] => 2 ) [5] => Array ( [0] => 1 [1] => 3 ) [6] => Array ( [0] => 1 [1] => 1 [2] => 1 ) [7] => Array ( [0] => 1 [1] => 1 [2] => 2 ) [8] => Array ( [0] => 1 [1] => 1 [2] => 3 ) [9] => Array ( [0] => 1 [1] => 2 [2] => 1 ) [10] => Array ( [0] => 1 [1] => 2 [2] => 2 ) [11] => Array ( [0] => 1 [1] => 2 [2] => 3 ) [12] => Array ( [0] => 1 [1] => 3 [2] => 1 ) [13] => Array ( [0] => 1 [1] => 3 [2] => 2 ) [14] => Array ( [0] => 1 [1] => 3 [2] => 3 ) [15] => Array ( [0] => 2 [1] => 1 ) [16] => Array ( [0] => 2 [1] => 2 ) [17] => Array ( [0] => 2 [1] => 3 ) [18] => Array ( [0] => 2 [1] => 1 [2] => 1 ) [19] => Array ( [0] => 2 [1] => 1 [2] => 2 ) [20] => Array ( [0] => 2 [1] => 1 [2] => 3 ) [21] => Array ( [0] => 2 [1] => 2 [2] => 1 ) [22] => Array ( [0] => 2 [1] => 2 [2] => 2 ) [23] => Array ( [0] => 2 [1] => 2 [2] => 3 ) [24] => Array ( [0] => 2 [1] => 3 [2] => 1 ) [25] => Array ( [0] => 2 [1] => 3 [2] => 2 ) [26] => Array ( [0] => 2 [1] => 3 [2] => 3 ) [27] => Array ( [0] => 3 [1] => 1 ) [28] => Array ( [0] => 3 [1] => 2 ) [29] => Array ( [0] => 3 [1] => 3 ) [30] => Array ( [0] => 3 [1] => 1 [2] => 1 ) [31] => Array ( [0] => 3 [1] => 1 [2] => 2 ) [32] => Array ( [0] => 3 [1] => 1 [2] => 3 ) [33] => Array ( [0] => 3 [1] => 2 [2] => 1 ) [34] => Array ( [0] => 3 [1] => 2 [2] => 2 ) [35] => Array ( [0] => 3 [1] => 2 [2] => 3 ) [36] => Array ( [0] => 3 [1] => 3 [2] => 1 ) [37] => Array ( [0] => 3 [1] => 3 [2] => 2 ) [38] => Array ( [0] => 3 [1] => 3 [2] => 3 ) )

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