3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Data { public $foo = 'bar'; public function wtf() { unset($this->foo); } } $d = new Data; var_dump('foo exists', isset(((array)$d)['foo']); $d->wtf(); var_dump('foo exists', isset(((array)$d)['foo']);
Output for 5.3.0 - 5.3.28, 5.4.0 - 5.4.30
Parse error: syntax error, unexpected '(' in /in/ChbHS on line 15
Process exited with code 255.
preferences:
174.72 ms | 1395 KiB | 67 Q