3v4l.org

run code in 300+ PHP versions simultaneously
<?php class MyClass { /** @return static */ public function fluent() : self { return $this; } } class MyExtended extends MyClass { public function getClass() : string { return __CLASS__; } } var_dump((new MyExtended())->fluent()->getClass());
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
string(10) "MyExtended"
Output for 5.6.0 - 5.6.26
Parse error: syntax error, unexpected ':', expecting ';' or '{' in /in/VdoHE on line 5
Process exited with code 255.
preferences:
172.08 ms | 401 KiB | 204 Q