3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php abstract class AbstractClass { public function __construct() { echo 'aaa'; } // Our abstract method only needs to define the required arguments abstract protected function prefixName($name); } class ConcreteClass extends AbstractClass { // Our child class may define optional arguments not in the parent's signature public function prefixName($name, $separator=0 ) { if ($name == "Pacman") { $prefix = "Mr"; } elseif ($name == "Pacwoman") { $prefix = "Mrs"; } else { $prefix = ""; } return "{$prefix}{$separator} {$name}"; } } $class = new ConcreteClass; echo $class->prefixName("Pacman"), "\n"; echo $class->prefixName("Pacwoman"), "\n"; ?>
Output for 5.0.0 - 5.6.25, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
aaaMr0 Pacman Mrs0 Pacwoman
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_CLASS in /in/K8pbB 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/K8pbB on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/K8pbB on line 2
Process exited with code 255.