Need help with a small piece of PHP code (for green rep)

Please go easy to me, I know little or nothing about PHP.

I am trying to insert some code in my Wordpress single post template so that my adsense does not appear on a couple of posts, but still on the rest.

This is what I have tried (remember, I know nothing about PHP!)...

<?php if( $URI == 'this-is-a-url-string'
|| $URI == 'this-is-also-a-url-string' ) {
'
';
} else {
'HERE IS MY FULL ADSENSE CODE';
}?>​

But it isn't working.

What do I need to change for this to work?

Any help will get green rep

 

Are you getting any errors?

<?php if(!($URI == 'this-is-a-url-string' || $URI == 'this-is-also-a-url-string')) { ?>

adsense code here.

<?php
}?>

Code (markup):

That should work much better for you.

 

Is the variable URI defined elsewhere in the script? If not, try using

$_SERVER['REQUEST_URI']

PHP:

 

you want adsense not to appear on some pages? am i correct?
if yes..
store $uri in a array instead.

!note: if not working echo $_SERVER['REQUEST_URI']so you will have an idea why