can someone explain this one to me? a link to something in the php manual even?? i can't find anything:
if ($_SERVER['SERVER_PORT'] <> 443) {
doSomething();
}
Beaten by 2 seconds!
PlacidBox
2008-10-30 04:59:35
+2
A:
It's another way of saying "not equal to" (the != operator). I think of it as the "less than or greater than" operator which really just means "not equal to".
yjerem
2008-10-30 04:59:31
+1
A:
$_SERVER['SERVER_PORT'] gets the port used by the web server to serve HTTP requests. $_SERVER['SERVER_PORT'] <> 443 checks if the port is not equal to 443 (the default HTTPS port) and if not, invokes doSomething()
indyfromoz
2008-10-30 05:03:15
A:
good show! thanks to all that answered. :) loving stack overflow. :P
ocergynohtna
2008-10-30 05:13:41
I understand your enthusiasm, but it's discouraged to post an answer to your own question (or any question) that's not an answer, but a comment. If you wish to compliment someone for a good answer, upvote, give a positive comment, or (best of all) accept their answer as correct. See the FAQ (http://stackoverflow.com/faq) for more information. Not trying to get on your back or anything, just trying to encourage you in what this site considers the "right direction." :)
Chris Lutz
2009-08-19 07:20:02
+1
A:
Note that <> behaves as != even where < and > are not obvious comparison operators (eg $str1 <> $str2).
eyelidlessness
2008-10-30 05:23:02
What the hell do they compare? As far as I can tell, they compare the "value" (alphabetically, a < b) of the strings. I can't imagine a use case for that.
eyelidlessness
2008-10-30 06:54:57
@PhiLho Strings are not often thought of as less than or greater than each other, unless you're comparing the length of the string. This is where most of the confusion arises.
orokusaki
2010-02-23 18:50:09
@PhiLho I'm speaking in respects to comparison operators, not sorting algorithms.
orokusaki
2010-02-25 01:53:16
@orokusaki: Perhaps we are not talking of the same thing. The code: s1 = "Absolute"s2 = "Bazaar"print(s1 < s2)print(s1 == s2)print(s1 > s2)shows true, false, false in Lua, Python and with minor changes PHP, JavaScript and probably lot of other languages.
PhiLho
2010-02-25 07:20:50
+2
A:
Although PHP is mostly based on C-style syntax, this is one of the weird things that comes from the BASIC-style syntax world.
Needless to say, I'd just use != and be consistent with it, as <> is really never used.
Bob Somers
2008-10-30 06:01:28