PHP | Get handle from URL

get_handle.php

<?php
/**
* Takes a complete URL and returns the user handle
* created for Instagram but also likely to work for other social channels
**/
function get_handle( $url ) {
    $url = rtrim( $url, '/' );
    $parse = parse_url( $url );
    $path = $parse['path'];
    $path = ltrim( $path, '/' );
    return '@' . $path;
}
?>