3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php interface Permissions { public function isReadable(); public function isWritable(); } class ReadOnly implements Permissions { public function isReadable() { return true; } public function isWritable() { return false; } } class WriteOnly implements Permissions { public function isReadable() { return false; } public function isWritable() { return true; } } class ReadWrite implements Permissions { public function isReadable() { return true; } public function isWritable() { return true; } } class Field { private $name; private $permissions; public function __construct($name, Permissions $permissions = null) { $this->name = (string) $name; $this->permissions = $permissions ?: new ReadOnly; } public function getName() { return $this->name; } public function isReadable() { return $this->permissions->isReadable(); } public function isWritable() { return $this->permissions->isWritable(); } } $a = new Field('a'); var_dump($a->isReadable()); var_dump($a->isWritable()); $b = new Field('b', new ReadWrite); var_dump($b->isReadable()); var_dump($b->isWritable());
based on nWqvn
Output for 5.3.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
bool(true) bool(false) bool(true) bool(true)
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.1.0 - 5.2.17
Parse error: syntax error, unexpected ':' in /in/lf9V3 on line 54
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected ':' in /in/lf9V3 on line 54
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING in /in/lf9V3 on line 3
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_STRING in /in/lf9V3 on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/lf9V3 on line 3
Process exited with code 255.