3v4l.org

run code in 300+ PHP versions simultaneously
<?php abstract class Css { abstract protected function parse($data); } abstract class CssElem extends Css { abstract protected function parse($data); } class Modifier extends CssElem { function __construct($data = null) { if( $data ) $this->parse ($data); } protected function parse($data) { // Some code... } }
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.3 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.32, 5.6.8 - 5.6.18, 7.0.0 - 7.0.3, 7.1.0 - 7.1.30
Fatal error: Can't inherit abstract function Css::parse() (previously declared abstract in CssElem) in /in/1fhPr on line 8
Process exited with code 255.
preferences:
172.59 ms | 402 KiB | 216 Q