For the first time in my life, I used XOR!

[filburt1]

Simplified thanks to Excel's godawful boolean functions:

PHP Code:

if (($_REQUEST['p'] and $_REQUEST['postid']) or !($_REQUEST['p'] and $_REQUEST['postid'])) 


Doesn't make sense what you're trying to do:

a	b	a xor b	not (a xor b)
TRUE	TRUE	FALSE	TRUE
TRUE	FALSE	TRUE	FALSE
FALSE	TRUE	TRUE	FALSE
FALSE	FALSE	FALSE	TRUE

If we were dealing strictly with booleans instead of this stupid PHP typeless system, it would be as blissfully simple as:

PHP Code:

if ($_REQUEST['p'] == $_REQUEST['postid']) 


[sabret00the]

what i'm trying to do is

a		b		a xor b			no*(a xor b)
TRUE		FALSE		TRUE			FALSE
FALSE		TRUE		TRUE			FALSE
FALSE		FALSE		FALSE			TRUE
TRUE		TRUE		FALSE			FALSE

it's basically making sure that either $_REQUEST['p'] or $_REQUEST['postid'] exist, but never neither.

to simplify it, you'd use

PHP Code:

if (!(($_REQUEST['p'] AND !$_REQUEST['postid']) OR (!$_REQUEST['p'] AND $_REQUEST['postid']))) 


* no a xor b as opposed to NOT a xor b

Originally Posted by nexialys

you... remembered this thread... seriously ?!... 3 years back... damn, how big is your backup ?

lol, funnily enough, i can barely remember where i put my keys but this thread stuck with me.

having just tested it, the exclaimation kills it, so it's now

PHP Code:

if (is_array($_REQUEST) AND ($_REQUEST['p'] XOR $_REQUEST['postid']))