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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, $y) { if (!isset($this->a[$x])) { throw new Exception('Missing X: "' . $x . '"'); } if (!isset($this->a[$y])) { throw new Exception('Missing Y: "' . $y . '"'); } return $x < $y; } public function __construct() { uksort($this->a, [$this, '_mySort']); } } // new myClass(); $a = ['foo-test' => [1], '-' => [2], 'bar-test' => [3]]; uksort($a, function($x, $y) { if (!isset($a[$x])) { throw new Exception('Missing X: "' . $x . '"'); } if (!isset($a[$y])) { throw new Exception('Missing Y: "' . $y . '"'); } return $x < $y; });
based on MRs52
Output for 7.0.0 - 7.2.0
Fatal error: Uncaught Exception: Missing X: "foo-test" in /in/eEMnQ:36 Stack trace: #0 [internal function]: {closure}('foo-test', '-') #1 /in/eEMnQ(44): uksort(Array, Object(Closure)) #2 {main} thrown in /in/eEMnQ on line 36
Process exited with code 255.
Output for 5.4.11 - 5.6.28
Warning: uksort(): Array was modified by the user comparison function in /in/eEMnQ on line 44 Fatal error: Uncaught exception 'Exception' with message 'Missing X: "-"' in /in/eEMnQ:36 Stack trace: #0 [internal function]: {closure}('-', 'foo-test') #1 /in/eEMnQ(44): uksort(Array, Object(Closure)) #2 {main} thrown in /in/eEMnQ on line 36
Process exited with code 255.
Output for 5.3.21 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/eEMnQ on line 5
Process exited with code 255.