PHP regexp US address

Question

I\'m trying to see what would be a good way to validate a US address, I know that there might be not a proper way of doing this, but I\'m going for the basic way: #

Answer 1

Ask the user to enter parts of the address in separate fields (Street name, City, State, and Zip Code) and use whatever validation appropriate for such a field. This is the general practice.

Alternatively, if you want simplest of regex that matches for four strings separated by three commas, try this:

/^(.+),([^,]+),([^,]+),([^,]+)$/

If things match, you can use additional pattern matching to check components of the address. There is no possible way to check the street address validity but you might be able to text postal codes and state codes.