Adding optional parameters to my function

[htcilt]

Hi,

I've written a function to clear applied filters from a search form.
Taking ebay as an example, you can add a "Condition" filter to the search for "new" and "used".

My function removes the passed parameter from the URL string, then runs the search again without those filters:

PHP Code:

function clearFilter($clearMe) {
   $prefix_url = 'http://' . htmlentities($_SERVER['HTTP_HOST'], ENT_QUOTES, 'UTF-8') . htmlentities($_SERVER['PHP_SELF'], ENT_QUOTES, 'UTF-8'); // SITE WEB DOMAIN
   $suffix_url = "?" . http_build_query($_GET); // PAGE AND FORM PARAMETERS
   $current_url =  $prefix_url.$suffix_url; // JOIN THEM
   $parsed_url = parse_url($current_url, PHP_URL_QUERY);// SEPARATE EACH PARAMETER E.G. CONDITION
   $explode_url = array();
   parse_str($parsed_url, $explode_url); // PUT EACH PARAMETER INTO ARRAY
   
   // CHECK WHICH FILTER SHOULD BE RESET
   if($clearMe=="condition"){
   unset($explode_url['condition']);
   } elseif ($clearMe=="pricerange"){
   unset($explode_url['pricerange']);
   } elseif ($clearMe=="distance"){
   unset($explode_url['distance']);
   }

   $new_url = http_build_query($explode_url);//CONVERT BACK TO A URL
   $final_url = $prefix_url . "?" . $new_url;
   return $final_url;
} 


I now need to clear all filters in one go, so I guess I need to modify the function to take 1 mandatory parameter and 2 optional.

Can anyone help me modify my function?

[MattF]

Originally Posted by htcilt

modify the function to take 1 mandatory parameter and 2 optional.

function clearFilter($clearMe, $opt1 = false, $opt2 = false)
{
    if ($opt1)
    {
         [optional code here]
    }

    if ($opt2)
    {
         [optional code here]
    }
    [the rest of your code here]
}

[htcilt]

excellent! thanks very much