nl2br more than one newline

Question

Hi, I am using nl2br to convert nl chars to
tag but for ex i want to convert "Hello \n\n\n\n Everybody" to "Hello
Everybody" also i want to convert multinewlines to one br tag. How can i do this ?

Answer 1

The most direct approach might be to first replace the multiple newlines with one using a simple regular expression:

nl2br(preg_replace("/\n+/", "\n", $input));

Answer 2

I'd try replacing repeated newlines with single newlines using preg_replace() first, then using nl2br to convert to HTML
tags. nl2br(preg_replace('/\n+/', '\n', $the_string)) should do the trick (untested).

Answer 3

If you have php 5.2.4+ you can use preg_replace and the vertical whitespace character type \v

$str = preg_replace('/\v+/','<br>', $str);