Question

I want remove repeating character if more than 2 on user input, example

heloooo!!!!!!!!
====== hellloooo!!!!! ======
helooo!!!!! this is a 3 AAA battery holder

results should be

heloo!!
== helloo!! ==
heloo!! this is a 3 AAA battery holder

Let me know..

Answer 1

Something like this?

$result = preg_replace('/([^\s\w])\1{2,}/', '\1\1', $subject);

This looks for a run of three or more identical characters (non-whitespace, non-alphanumeric) and replaces them with two of these characters.