How to validate a LinkedIn public profile url

Question

I am looking for a way to validate a link to make sure that it is pointing to a LinkedIn public profile page in PHP.

I have a website and I would like my users to be abl

Answer 1

This is tested regular expression that I use on my website. I fit all the variations that currently exist.

var linkedin=/(https?)?:?(\/\/)?(([w]{3}||\w\w)\.)?linkedin.com(\w+:{0,1}\w*@)?(\S+)(:([0-9])+)?(\/|\/([\w#!:.?+=&%@!\-\/]))?/;