I have a page where I can pass from one to three variables through the query string.
There are three cases:
The variables page and gender are always named like this, but the FILTER one can be three different things: brand, category and subcategory.
Because the gender variable is optional, I cannot use $_SERVER['QUERY_STRING'] to get its name and value value because it's not always the second variable.
Based on the FILTER selected I do different things, each filter has a different functionality attached to it.
My question is: how can I know which of the three filters is selected after excluding page and gender, so basically if something like this is possible
if ( isset($_GET['brand']) || isset($_GET['category']) || isset($_GET['subcategory']) ) {
// $selected = whichever variable is set, something like $(this) in jQuery
}
The alternative is to create an if() statement for each of the three cases, but if I will add more filters then I will have to add more if() statements.
1) You could use if statements just like you said.
2) You could do something like
products.php?gender=x&filter=x+c&page=x
$filter = explode('+', $_GET['filter']));
$type = $filter[0] //x
$value = $filter[1] //c
Then you could use a switch for more readabilty
switch($type){
case 'brand':
//do stuff
break;
default:
//do stuff
}