Online PHP editor | refs for 6flqu

@ 2018-07-04T14:00:11Z

<?php

$a = null;
$b = null;
$c = true;
// $d is not defined

var_dump(
    empty($a && $b), // true (no error)
    empty($b && $c), // true (no error)
    empty($b || $c), // false (no error)
    empty($d),       // true (no error)
    empty($c && $d)  // true (error)
);