Extract URLs from text in PHP

Question

I have this text:

$string = \"this is my friend\'s website http://example.com I think it is coll\";

How can I extract the link into another

Answer 1

This Regex works great for me and i have checked with all types of URL,

Checked with lots of URL's can find here http://www.rubular.com/r/bFHobduQ3n