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 covers most LinkedIn profile URLs (Javascript RegEx):

• http://www.linkedin.com/in/username

• https://www.linkedin.com/in/username

• http://linkedin.com/in/username

• https://linkedin.com/in/username

• http://www.linkedin.com/mwlite/in/username

• https://www.linkedin.com/mwlite/in/username

• http://linkedin.com/mwlite/in/username

• https://linkedin.com/mwlite/in/username

• http://www.linkedin.com/m/in/username

• https://www.linkedin.com/m/in/username

• http://linkedin.com/m/in/username

• https://linkedin.com/m/in/username

// Generic RegEx exact match validator
export const isRegexExactMatch = (value, regexp) => {
  const res = value.match(regexp);
  return res && res[0] && res[0] === res.input;
};

const isLinkedinProfileUrl = (value) => {
  const linkedInProfileURLRegExp =
    '(https?:\\/\\/(www.)?linkedin.com\\/(mwlite\\/|m\\/)?in\\/[a-zA-Z0-9_.-]+\\/?)';
  return !!isRegexExactMatch(value, linkedInProfileURLRegExp);
};

Answer 2

I've simply used the following regex:

http(s)?:\/\/([w]{3}\.)?linkedin\.com\/in\/([a-zA-Z0-9-]{5,30})\/?

According to the latest Linkedin documentation custom profile url can have 5-30 letters or numbers.

It works for the following list of url:

https://www.linkedin.com/in/your-profile-5-30-length/
https://linkedin.com/in/your-profile-5-30-length/
http://www.linkedin.com/in/your-profile-5-30-length/
http://linkedin.com/in/your-profile-5-30-length/

Answer 3

I've found a number of ways the profile url can look like:

http://uk.linkedin.com/pub/some-name/1/1b3/b45/
http://nl.linkedin.com/pub/other-name/11/223/544
http://www.linkedin.com/in/aname/
http://www.linkedin.com/in/another-name
http://linkedin.com/in/name
http://nl.linkedin.com/in/name
http://nl.linkedin.com/in/name/

I've used this regex to describe it:

^https?://((www|\w\w)\.)?linkedin.com/((in/[^/]+/?)|(pub/[^/]+/((\w|\d)+/?){3}))$

It is not strict-strict but it got me home.

edit
- Added https support

Answer 4

Following expression will help you with all patterns:

((https?:\/\/)?((www|\w\w)\.)?linkedin\.com\/)((([\w]{2,3})?)|([^\/]+\/(([\w|\d-&#?=])+\/?){1,}))$

Demo

https://regex101.com/r/oT7iM2/5

Answer 5

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#!:.?+=&%@!\-\/]))?/;

Answer 6

There a very nice examples on the developer API pages http://developer.linkedin.com/

This http://developer.linkedin.com/plugins/member-profile-plugin could be what your looking for.