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<?php $map = array(array('-1'=>0, '-10'=>0, '-100'=>0), array(array('-1'=>0, '-10'=>0, '-100'=>0))); array_map(function($item){var_dump($item);if(is_array($item))ksort($item);}, $map); print_r($map);
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
array(3) { [-1]=> int(0) [-10]=> int(0) [-100]=> int(0) } array(1) { [0]=> array(3) { [-1]=> int(0) [-10]=> int(0) [-100]=> int(0) } } Array ( [0] => Array ( [-1] => 0 [-10] => 0 [-100] => 0 ) [1] => Array ( [0] => Array ( [-1] => 0 [-10] => 0 [-100] => 0 ) ) )
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION, expecting ')' in /in/o68Yd on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION, expecting ')' in /in/o68Yd on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/o68Yd on line 4
Process exited with code 255.

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