3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Dad { public function early() { print __CLASS__ . PHP_EOL; } public function late() { print get_class($this) . PHP_EOL; } } class Child extends Dad {} $parent = new Dad(); $child = new Child(); print 'PARENT' . PHP_EOL; $parent->early(); $parent->late(); print 'CHILD' . PHP_EOL; $child->early(); $child->late();
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 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 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
PARENT Dad Dad CHILD Dad Child

preferences:
148.7 ms | 404 KiB | 194 Q