preg_replace for urls

[jdeutsch]

I recently found the following code on php.net listed under preg_replace.  It does exactly what I'm trying to accomplish, however, it does the capture the TLD of the domain in question.

 

CODE (extra spaces in regex added to keep code from running too long on the page):

<?php
function hyperlink($text) {
    // match protocol://address/path/file.extension?some=variable&another=asf%
    $text = preg_replace("/\s([a-zA-Z]+:\/\/[a-z][a-z0-9\_\.\-]*
            [a-z]{2,6}[a-zA-Z0-9\/\*\-\?\&\%\=]*)([\s|\.|\,])/i",
            " <a href=\"$1\" target=\"_blank\">$1</a>$2", $text);
    // match www.something.domain/path/file.extension?some=variable&another=asf%
    $text = preg_replace("/\s(www\.[a-z][a-z0-9\_\.\-]*
            [a-z]{2,6}[a-zA-Z0-9\/\*\-\?\&\%\=]*)([\s|\.|\,])/i",
            " <a href=\"http://$1\" target=\"_blank\">$1</a>$2", $text);
    // match name@address
    $text = preg_replace("/\s([a-zA-Z][a-zA-Z0-9\_\.\-]*[a-zA-Z]*
            \@[a-zA-Z][a-zA-Z0-9\_\.\-]*[a-zA-Z]{2,6})([\s|\.|\,])/i",
            " <a href=\"mailto://$1\">$1</a>$2", $text);
    return $text;
}
?>

 

For example, when attempting to extract http://www.google.com from a string, it gets "http://www.google" and nothing else.

 

I am not very familiar with regular expressions, so if someone could tell me how to tweak the expressions to include the TLD (and any info after the domain - get variables, etc.), it would be greatly appreciated.

[teng84]

i try this  hyperlink('http://www.google.com ')  nad it output http://www.google.com

 

is there a problem there  sorry cant understand it clearly.. and this should be on the regex board?

[jdeutsch]

Thanks for the pointer, and sorry about posting in the wrong place.  Works fine, like you said.