Using javascript I have written a cookie with several comma seperated values. Is it possible to use php to read the cookie, I want to loop through all the values stored in the cookie? Is it possible? does anyone know how to do it?

if i undestand what your saying and you have one cookie variable that is a string then this is how you would access (replace all instances of VARNAME with your cookie variable name):

$string=$_COOKIE[VARNAME]; //copies the cookie variable to a string
$array=explode(",",$string); //seperates the string into array elements

then you have an array with each element, if you want to access those then run a foreach:
foreach($array as $element) {
  //do stuff
}

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Cheers, thats exactly what I was looking for