3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { public function __construct() : void {} }
Output for 8.0.0 - 8.0.27, 8.1.0 - 8.1.14, 8.2.0 - 8.2.1
Fatal error: Method Foo::__construct() cannot declare a return type in /in/YPhAX on line 4
Process exited with code 255.
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Fatal error: Constructor Foo::__construct() cannot declare a return type in /in/YPhAX on line 3
Process exited with code 255.
Output for 5.6.0 - 5.6.40
Parse error: syntax error, unexpected ':', expecting ';' or '{' in /in/YPhAX on line 4
Process exited with code 255.
preferences:
291.46 ms | 1395 KiB | 261 Q