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run code in 150+ php & hhvm versions
Bugs & Features
<?php function reorderArray($array, $key) { if(!array_key_exists($key, $array)) { return $array; } $one = []; foreach($array as $k=>$v) { if($k===$key) { break; } $one[$k] = $v; unset($array[$k]); } return array_merge($array, $one); } $array=[1=>'foo', 4=>'bar', 9=>'baz', 'test'=>51]; var_dump(reorderArray($array, 9)); var_dump(reorderArray($array, 'test'));
Output for 5.4.0 - 5.6.25, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
array(4) { [0]=> string(3) "baz" ["test"]=> int(51) [1]=> string(3) "foo" [2]=> string(3) "bar" } array(4) { ["test"]=> int(51) [0]=> string(3) "foo" [1]=> string(3) "bar" [2]=> string(3) "baz" }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/YLcUj on line 8
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/YLcUj on line 8
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/YLcUj on line 8
Process exited with code 255.