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<?php $array = [[['a'],['b']],[['c','d']]]; var_dump(array_values(array_values(array_values($array))));
based on rqpOO
Output for 5.4.0 - 7.2.0
array(2) { [0]=> array(2) { [0]=> array(1) { [0]=> string(1) "a" } [1]=> array(1) { [0]=> string(1) "b" } } [1]=> array(1) { [0]=> array(2) { [0]=> string(1) "c" [1]=> string(1) "d" } } }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/7YdU1 on line 2
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/7YdU1 on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/7YdU1 on line 2
Process exited with code 255.