Online PHP editor | refs for XdcBZ

@ 2014-04-14T06:55:10Z

<?php
$a = "0";
var_dump($a != NULL); // "0" != ""
var_dump((bool)$a == NULL);// false == false
var_dump((bool)$a); // false
var_dump($a != NULL && (bool) $a == NULL);
var_dump($a == false);