[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']))