PHP: url detection (regexp) includes line breaks

Question

I want to have a function that takes text as input and returns text with urls made to HTML links as output.

My project looks like this:

function autoLink($text) {
    return preg_replace('/https?:\/\/[\S]+/i', '<a href="\0">\0</a>', $text);
}

But it doesn't work as expected.

To enter text that contains ...

http://www.google.de/

... I get the following output:

<a href="http://www.google.de/<br">http://www.google.de/<br</a> />

Why does it include line breaks? How can I limit it to a valid url?

Thanks in advance!

+2

caw May 16 '10 at 15:14

2 answers

How about using Gruger URL Regex ?

\b(([\w-]+://?|www[.])[^\s()<>]+(?:\([\w\d]+\)|([^[:punct:]\s]|/)))

+1

Alix axel May 16 '10 at 16:39

Heinzi · Accepted Answer · 2010-05-16T15:40:48+0000

Well, <

it is not a space character, so it matches[\S]

. You can exclude it from the accepted character set:

preg_replace('/https?:\/\/[^\s<]+/i', '<a href="\0">\0</a>', $text);