3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { public function setUp() { } } class B extends A { public function setUp(): void { } }
Output for 7.1.26 - 7.1.33, 7.2.17 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
preferences:
108.77 ms | 1395 KiB | 4 Q