3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { public function __construct() { echo 'A'; } } class B extends A { public function __construct() { parent::__construct(); echo 'B'; } } class C extends B { public function __construct() { // Skip parent constructor, but call grand-parent A::__construct(); echo 'C'; } } new C;
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 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 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
AC
preferences:
94.62 ms | 408 KiB | 5 Q