Foreach with multiples variable - showing URL

I hope someone can help me out on this one.

I want to print a url base on Home - Category - subcategory -post

Basicaly is a 4 deep silo architecture using pages for category and subcategory.

I succeed to get the first 2 working but cant find how to add the third variable working in that code.

Any help is welcome :)

There is what I get so far

$alink= get_category_link ($alink_cat_id );
$blink = get_the_permalink ($blink _id);
$clink = get_the_permalink ($clink_cat_id );

$request = $alink 
$destination = $blink
//This is the var I need to get into the result
//$seconddestination = $clink 

//Get entire array
$redirects = get_option('redirects');

//Alter the options array appropriately
$redirects[$request] = $destination;

//Update entire array
update_option('redirects', $redirects);


///Show the Full URL///

    echo '<br><h3>Show Full URL Silo Page</h3>';

$redirects = get_option('redirects');
            if (!empty($redirects)) {


                foreach ($redirects as $a => $b) {
                         echo $a.' &nbsp;&nbsp;    >>> &nbsp;&nbsp;    '.$b.'<br>';
                }
                }

via Chebli Mohamed