Question

I need a little help here. This code correctly displays every format I enter–except when it’s xxx.xxx.xxxx

It keeps the periods in! How do I filter out periods too?

preg_replace("/([0-9]{3})([0-9]{3})([0-9]{4})/", "$1-$2-$3", $phone_enter)

Answer 1

You need to update the query so it will allow a . (dot), i added the \.? which means, a dot may appear zero or one time.

preg_replace("/([0-9]{3})\.?([0-9]{3})\.?([0-9]{4})/", "$1-$2-$3", $phone_enter)