3v4l.org

run code in 300+ PHP versions simultaneously
<?php interface Dog { public function woof(); } class Terrier implements Dog { public function woof() { echo 'woof'; } } class Staffie extends Terrier { } $dog = new Staffie(); theBestDog($dog); function theBestDog(Dog $dog){ echo 'The best dogs is ' . get_class($dog) . '. '; $dog->woof(); }
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.30, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 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 - 8.1.27, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
The best dogs is Staffie. woof
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING in /in/n2c7l on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_STRING in /in/n2c7l on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/n2c7l on line 3
Process exited with code 255.
preferences:
267.86 ms | 401 KiB | 414 Q