I have a feeling I've seen such triple operators (!==, === etc.) in the code before, but I can't quite remember what they mean.
On Pg. 404 (at the very bottom of it), this operator is used in the following bit of code:
foreach ($very_bad as $v) {
if (stripos($value, $v) !== false) return '';
}
I don't think this has ever been explained in the book up to this point, unless I somehow missed such explanation.
Could someone knowledgeable educate me, please?