3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { public $f = 56; } function f() { return [new A()]; } var_dump(isset(f()));
Output for 5.4.0 - 5.4.24
Fatal error: Can't use function return value in write context in /in/ajl5s on line 13
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected '[' in /in/ajl5s on line 9
Process exited with code 255.
preferences:
191.05 ms | 1395 KiB | 61 Q