Bug #71334 [NEW]: Cannot access array keys while uksort()

From: alex dot schneider at sevenval dot com Operating system: Linux Mint 17.3 PHP version: 7.0.2 Package: Arrays related Bug Type: Bug Bug description:Cannot access array keys while uksort() Description: ------------ Cannot access array keys while uksort(). Sorry for my English... Test script: --------------- <?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(); Expected result: ---------------- No Exceptions Actual result: -------------- Exception: PHP Fatal error: Uncaught Exception: Missing Y: "bar-test" in ... -- Edit bug report at https://bugs.php.net/bug.php?id=71334&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=71334&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=71334&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=71334&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=71334&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=71334&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=71334&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=71334&r=needscript Try newer version: https://bugs.php.net/fix.php?id=71334&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=71334&r=support Expected behavior: https://bugs.php.net/fix.php?id=71334&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=71334&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=71334&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=71334&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=71334&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=71334&r=dst IIS Stability: https://bugs.php.net/fix.php?id=71334&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=71334&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=71334&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=71334&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=71334&r=mysqlcfg