how to wrap a url which is in the string with href tag?

[caballero]

Howdy,

 

I'm in trouble here. Does someone know how to wrap a url which is in the string with href tag without writing like a few hundred line long code? Example:

Before: "This is a url http://www.domain.com and then some text"

After: "This is a url <a href="http://www.domain.com">http://www.domain.com</a> and then some text"

 

 

the string is to be received by a flash application right after.

[freelance84]

$url = "www.url.com";
$href_url="<a href=\"http://$url\">http://$url</a>

[ldb358]

<?php

function replace_links($string){

$start = strpos($string, 'http://');

    if($start !== false){

        $end = strpos($string, " ",$start);

        $link = substr($string, $start,$end-$start);

        $link = "<a href='$link'>".$link."</a>";

        return substr_replace($string,$link,$start,$end-$start);

    }else{

        return $string;

    }

}

?>