Question

PHP newbie here.. I am trying to create a function where the user is redirected back to the previous page after adding an item to their cart. However, when they are redirected back with the code below it leaves a duplicate of the directory (ie. example.com/catalog/garden-tools/garden-tools

function custom_add_to_cart_redirect() {
    $_SERVER['REQUEST_URI_PATH'] = parse_url($_SERVER['REQUEST_URI'], PHP_URL_PATH);
    $url = explode('/', rtrim($_SERVER['REQUEST_URI_PATH'], '/'));
    return $url[3];
}

A print_r reveals the following:

Array ( [0] => [1] => thefarmshop [2] => catalog [3] => garden-tools [4] => gardening-glove )

What could the issue be?

Answer 1

Since the url is exploded, you get an array like:
$url[ 0 ] = "http:"
$url[ 1 ] = "SOME_STRING" and so on.
You need to check what is the index of the wanted string in your url array and return it.
Like return $url[ 2 ] or whatever the index is.

UPDATE

function custom_add_to_cart_redirect() {
    $url = explode('/', substr($_SERVER['HTTP_REQUEST'], 1));
    print_r( $url );
}

The print_r( $array ) shows the $array structure including indices and values.