Replace all URLs in text to clickable links in PHP

Question

I have a web application written with PHP. I wanted to find all URLs inside users comments and change them to clickable links. I searched many websites and pages and found t

Answer 1

function convert($input) {
   $pattern = '@(http(s)?://)?(([a-zA-Z])([-\w]+\.)+([^\s\.]+[^\s]*)+[^,.\s])@';
   return $output = preg_replace($pattern, '$0', $input);
}

demo