Confused about using url Shortner php-script or WP-Plugin

[merazuk]

Hi there,
I wanna launch my private URL shortener site to manage all my long URLs in a short manner. And it will be my private site. May be inserted ad on later but not now.
Private for making short URLs only by me and no option for others. Even visitors cannot visit my short URL home page (except admin mode). they are only allowed for redirecting my short URLs.

But I am confused about which PHP-script or WP-Plugin should I go for??
As I have got there are two options:

1. Use any PHP-script for shortening URLs OR
2. setup a WordPress site and Use Wordpress URL shortener plugin. There many famous pro-level plugins for this job. Example, Pretty link pro, Better Links Pro and URL Shortener Pro by methemeshop.com. All of them are best at their performance.

So can any experienced person suggest which option I need to follow? Use a PHP script or use any WP-Plugin. And If WordPress plugin is your suggestion then which plugin can I use for my personal URL shortener site.