Online PHP editor | refs for viAIY

@ 2013-03-22T16:02:19Z

<?php
define('A', null);
class Foo {
    const NO_VALUE = null;

    public static function bar($param = self::NO_VALUE) {
        if ($param == self::NO_VALUE)
            echo "Param was NO_VALUE";
        else
            echo "Param was a valid instance of Foo";
    }
}