Quick question about $_REQUEST

Davy

I found out today that this array will look through all GET, POST and COOKIES.

But what if there are two the same 'name' but have different values?

Ok like this:

$_POST['Foo'] == "Hello World!";
$_GET['Foo'] == "FooFoo!"

Ok so this code won't actually do anything. In fact I believe it will generate an error...but let's just image a page has loaded with both these available. In the page's code we do this:

echo $_REQUEST['Foo'];

What would happen?

weekender

hi mate

in the configuration directives, there is a var called gpc_order which dictates the priority of global variables.

gpc_order string
Set the order of GET/POST/COOKIE variable parsing. The default setting of this directive is "GPC". Setting this to "GP", for example, will cause PHP to completely ignore cookies and to overwrite any GET method variables with POST-method variables of the same name.

Note: This option is not available in PHP 4. Use variables_order instead.

think this is it, although this is more frequently used when register_globals is set to on (it is set to off by default from PHP 4)

cheers, adam

Davy

Hey buddy,

So in fact I would get

FooFoo!

Right okay simple enough 🙂

Are these set in the php.ini? If so, they can be changed using ini_set or something? Like just an exception for a page if I want, say, COOKIES to be referred to first..?

BTW I am aware we can code in a check that would make all this simpler than changing the 'priority dictatorship' by using this IF model:

if COOKIES['Foo'] is set then use this.

If not, then are POST['Foo'] set?

Okay then...refer to GET['Foo']

But for references sake. You know how it is. I keep a list of useful functions I find out about on forums that I might need in a current project or wished I'd known about in past projects. The last one I found out about and could have done with was the extract() function.

Thanks for the informative reply, Weekender!