Splitting strings in PHP and get last part

Question

I need to split a string in PHP by \"-\" and get the last part.

So from this:

abc-123-xyz-789

I expect to get

Answer 1

Just check whether or not the delimiting character exists, and either split or don't:

if (strpos($potentiallyDelimitedString, '-') !== FALSE) {
  found delimiter, so split
}