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run code in 150+ php & hhvm versions
Bugs & Features
<?php function flatten(array $array) { $return = array(); array_walk_recursive($array, function($a, $b) use (&$return) { $return[$b] = $a; }); return $return; } $a = array(1,2,array(3,4, array(5,6,7), 8), 9); $array = array( 1 => array( 5 => array( 3 => 'testvalue1' ) ), 2 => array( 6 => 'testvalue2' ), 3 => 'testvalue3', 4 => 'testvalue4', ); var_dump(flatten($a));
based on 7Zlum
Output for 5.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
array(4) { [0]=> int(5) [1]=> int(6) [2]=> int(7) [3]=> int(9) }
Output for 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/BaHkM on line 4
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_ARRAY, expecting '&' or T_VARIABLE in /in/BaHkM on line 2
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_ARRAY, expecting ')' in /in/BaHkM on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_ARRAY, expecting ')' in /in/BaHkM on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/BaHkM on line 2
Process exited with code 255.