- substr: documentation ( source)
- preg_replace: documentation ( source)
<?php
function removeVar($url, $key) {
$url = preg_replace('/(.*)(?|&)' . $key . '=[^&]+?(&)(.*)/i', '$1$2$4', $url . '&');
$url = substr($url, 0, -1);
return $url;
}
$url = "/search/listing.html?vehicle_type=&year=&make_name=&model_name=&loc_type=3&zipcode=641004&distance=100&make_order=ASC";
$newUrl = removeVar($url, "make_order");
echo $newUrl;