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run code in 150+ php & hhvm versions
Bugs & Features
<?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... } }
based on JX3h4
Output for 5.0.0 - 5.6.18, 7.0.0 - 7.0.3
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.
Output for hhvm-3.10.0 - 3.12.0
Fatal error: Cannot re-declare abstract method Css::parse() abstract in class CssElem in /in/1fhPr on line 6
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_CLASS in /in/1fhPr on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_CLASS in /in/1fhPr on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/1fhPr on line 2
Process exited with code 255.