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run code in 200+ php & hhvm versions
Bugs & Features
<?php class myClass { private $a = [ 'foo-test' => [1], '-' => [2], 'bar-test' => [3] ]; private function _mySort($x, $y) { print_r($this->a); if (!isset($this->a[$x])) { throw new Exception('Missing X: "' . $x . '"'); } if (!isset($this->a[$y])) { throw new Exception('Missing Y: "' . $y . '"'); } return ($x == 'foo-test' ? -1 : ($x == 'bar-test' ? 1 : 0)); } public function __construct() { uksort($this->a, [$this, '_mySort']); } } new myClass();
based on 7PVhi
Output for 7.0.0 - 7.2.0
Array ( [foo-test] => Array ( [0] => 1 ) [-] => Array ( [0] => 2 ) [bar-test] => Array ( [0] => 3 ) ) Array ( [foo-test] => Array ( [0] => 1 ) [-] => Array ( [0] => 2 ) [bar-test] => Array ( [0] => 3 ) )
Output for 5.4.11 - 5.6.28
Array ( [foo-test] => Array ( [0] => 1 ) [-] => Array ( [0] => 2 ) [bar-test] => Array ( [0] => 3 ) ) Array ( [foo-test] => Array ( [0] => 1 ) [-] => Array ( [0] => 2 ) [bar-test] => Array ( [0] => 3 ) ) Array ( [foo-test] => Array ( [0] => 1 ) [-] => Array ( [0] => 2 ) [bar-test] => Array ( [0] => 3 ) )
Output for 5.3.21 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/llbp4 on line 5
Process exited with code 255.