Need some PHP help with cookies!

Hey

I need a PHP script that would load in a JavaScript call up for example below...

<script type="text/javascript" src="http://example.com/script.php"></script>

I need PHP that looks for a cookie and if its not found loads a .js file?

Anyone know how this could be done?

+rep for anyone with a script!

 

Make the cookies with:

setcookie('nojs','blah',time()+86400); //expires in 24 hours

PHP:

check if it exists:

if(isset($_COOKIE[nojs])){
 echo 'It exists!';
}
else{
 //execute js
}

PHP:

hope it helps

 

if(isset($_COOKIE[nojs])){ echo 'It exists!';}else{ //execute js}

PHP:

How would I put that together to work? Where does the JS file go?

 

js file goes here - //execute js

replace //execute js with JS !