How To Make The Last Part Of This Regex Optional?

I am looping through all the links on a page and matching their href values against the following pattern: ([^/]+)/([0-9]+)/([^/]+) Problem is there are 2 types of link formats on

Solution 1:

Put the last bit in brackets of a non-capturing group and add a ?:

([^/]+)/([0-9]+)(?:/([^/]+))?

Solution 2:

Use ? quantifier, which makes your pattern optional. It matches either 0 or 1 occurrence of the pattern.

Also, you need to group the last slash, with your last part of your regex, in a non-capturing group.

([^/]+)/([0-9]+)(?:/([^/]+))?

Solution 3:

If you add a ? that should make the last part of the pattern optional.