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run code in 150+ php & hhvm versions
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<?php $array = [ [1, 30, 33], ['id' => 5] ]; $result = array_reduce($array, function (array $result, array $array) { return array_merge($result, array_map(function ($id) { return compact('id'); }, array_values($array))); }, []); var_dump($result);
Output for 5.4.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
array(4) { [0]=> array(1) { ["id"]=> int(1) } [1]=> array(1) { ["id"]=> int(30) } [2]=> array(1) { ["id"]=> int(33) } [3]=> array(1) { ["id"]=> int(5) } }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/8mK0I on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/8mK0I on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/8mK0I on line 3
Process exited with code 255.