Notice: Undefined index: path

Please ignore my previous enhancement suggestion as it turns out to be a little wrong please consider this little modification as possible solution

function custom_permalinks_trailingslash($string, $type) {
global $_CPRegisteredURL;

$url = parse_url(get_bloginfo(‘url’));
$request = ltrim(isset($url[‘path’]) ? substr($string, strlen($url[‘path’])) : $string, ‘/’);

if ( !trim($request) ) return $string;

$path = ”; // declare $path for future use

if(array_key_exists(‘path’,$url) == true){ // Check whether $url has “path” index
$path = $url[‘path’];
}
if ( trim($_CPRegisteredURL,’/’) == trim($request,’/’) ) { // continue with a $path as variable
return ($string{0} == ‘/’ ? ‘/’ : ”)
. trailingslashit($path) .
$_CPRegisteredURL;
}
return $string;
}