3v4l.org

run code in 300+ PHP versions simultaneously
<?php new A(); class A { public function jsonSerialize() { return array(); } } new B(); class B implements JsonSerializable { public function jsonSerialize() { return array; } } new B(); new C(); class C implements JsonSerializable { public function jsonSerialize() { return array; } }
Output for 5.3.0 - 5.3.28, 5.4.0 - 5.4.28
Parse error: syntax error, unexpected ';', expecting '(' in /in/WZe1m on line 13
Process exited with code 255.

preferences:
174.32 ms | 1395 KiB | 65 Q