Extract a Zip Code

[Anon]

Could anyone tell me how I could extract a Zip code from a string with a regular expression?

I need to grab all of the zip codes from a text file and store them in an array.

any ideas?

thanks

[bdbush]

You need to provide a sample of the file before I can give you a specific regular expression.

Also, I assume you want a php based one. They are not quite the same as Unix reg exs.

--brian