3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $conns = [ 'foo' => 'foo', 'bar' => 'bar' ]; $ordering = ['foo' => 1, 'bar' => 2]; uksort($conns, function($a, $b) use ($ordering) { return $ordering[$a] > $ordering[$b]; }); var_dump(array_values($conns));
based on Hcv5n
Output for 5.4.0 - 7.2.0
array(2) { [0]=> string(3) "foo" [1]=> string(3) "bar" }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/9R4fO 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/9R4fO on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/9R4fO on line 3
Process exited with code 255.