构建查询字符串链接

Question

I'm building a filters section for my search page and I was wondering what is the best way to go about doing the query strings. My problem is that these links function a lot like checkboxes, so some, all or none can be on. I'd have to loop through each of about 30 or so links, removing or adding that specific link's value depending on its state.

My first concern is:

Should I pass the arrays like

colors=red,blue,green   //explode?

or

colors[]=red&colors[]=blue&colors[]=green   //parse_str?

What is the fastest/best way to remove a certain value of a certain array as I loop through each link? I imagine it'd be a bit more complicated using the second method I've posted above, yes?

I've ran into a tutorial online and came up with this:

function remove( $filters = array(), $remove_key = NULL, $remove_val = NULL )
    {
        if( $remove_key != NULL && array_key_exists($remove_key,$filters) )
        {
            if( $remove_val != NULL && array_key_exists($remove_val,array_flip($filters[$remove_key])) )
            {
                $filters[$remove_key] = array_diff($filters[$remove_key],array($remove_val));
            } else {
                unset($filters[$remove_key]);
            }
        }
        return http_build_query( $filters );
    }

Currently, I can pass $remove_key to remove a key and $remove_val to remove a value from a key in an array.

What do you guys think? Would this be too slow for for doing 30-50 links? Thanks!

Answer 1

 colors[]=red&colors[]=blue&colors[]=green 

Would be a the Way a Form would submit the data (when method="get"). And you can access it via $_GET['colors'] which is the native and by that probably the fastest way.

EDIT: to get that string via http_build_query just fill them in the array color

$data = array('colors' => array('green','red','blue'));
echo http_build_query($data); // colors[0]=green&colors[1]=red&colors[2]=blue