3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { private $_foo = 'foo'; public function isMatch() { return $this->_foo == self::$_foo; } } class Bar extends Foo { private $_foo = 'bar'; } $a = new Bar(); var_dump($a->isMatch());

preferences:
51.24 ms | 402 KiB | 5 Q