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<?php $a = [0, 1, 2]; $b = [3, 4]; var_dump($a + $b); var_dump($b + $a); $a = ["a" => 0, "b" => 1, "c" => 2]; $b = ["b" => 3, "d" => 4]; var_dump($a + $b); var_dump($b + $a);
Output for 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
array(3) { [0]=> int(0) [1]=> int(1) [2]=> int(2) } array(3) { [0]=> int(3) [1]=> int(4) [2]=> int(2) } array(4) { ["a"]=> int(0) ["b"]=> int(1) ["c"]=> int(2) ["d"]=> int(4) } array(4) { ["b"]=> int(3) ["d"]=> int(4) ["a"]=> int(0) ["c"]=> int(2) }
preferences:
77.5 ms | 1571 KiB | 4 Q