Probably because there is

pr0gr4mm3r — Wed, 29 Oct 2008 19:50:30 +0000

Probably because there is not negative to the assignment operator - you can't unassign something . I look at it as replacing one of the = with a ! for the not. It helps me remember it that way.

I wonder why the designers

decibel.places — Wed, 29 Oct 2008 18:15:57 +0000

I wonder why the designers of these languages...

How about REFERER in PHP vs referrer in JavaScript?

and

var myCars = new Array("Saab","Volvo","BMW") (JavaScript (semi-colon optional))
vs
var $myCars = array("Saab","Volvo","BMW"); (PHP)

pr0gr4mm3r wrote: Yup, !==

teammatt3 — Wed, 29 Oct 2008 17:56:01 +0000

pr0gr4mm3r wrote:

Yup, !== is the opposite of === just as != is the opposite of ==.

I wonder why the designers of these languages say == is the equality operator and != is the negation of that. != should be the negation of assignment, and !== should be the negation of equality.

It's soooo confusing

Yup, !== is the opposite of

pr0gr4mm3r — Wed, 29 Oct 2008 17:17:47 +0000

Yup, !== is the opposite of === just as != is the opposite of ==.

I saw some code on DZone

decibel.places — Wed, 29 Oct 2008 17:14:32 +0000

I saw some code on DZone that used !==FALSE and wondered if that is the proper syntax..

You are correct in saying

pr0gr4mm3r — Wed, 29 Oct 2008 16:39:50 +0000

You are correct in saying === checks the type and == does not. This only means that if you do ($var == FALSE), the $var can be FALSE, 0, null, or empty string. With ($var === FALSE), $var can be only FALSE.

I hardly ever use === unless I need to test a function that might return either 0 or FALSE. strpos() is one of them.

Here are some references on php.net that further explains this:

http://us2.php.net/manual/en/language.types.boolean.php
http://us2.php.net/manual/en/language.operators.comparison.php