3v4l.org

run code in 300+ PHP versions simultaneously
<?php abstract class Point { protected function calc(Point $point) { return $point; } } class Point2D extends Point { public function calc(Point2D $point) { return $point; } }
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Declaration of Point2D::calc(Point2D $point) must be compatible with Point::calc(Point $point) in /in/laFi3 on line 10
Process exited with code 255.
Output for 7.4.0 - 7.4.33
Warning: Declaration of Point2D::calc(Point2D $point) should be compatible with Point::calc(Point $point) in /in/laFi3 on line 10
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33
Warning: Declaration of Point2D::calc(Point2D $point) should be compatible with Point::calc(Point $point) in /in/laFi3 on line 13
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Strict Standards: Declaration of Point2D::calc() should be compatible with Point::calc(Point $point) in /in/laFi3 on line 13
preferences:
244.25 ms | 402 KiB | 330 Q