Replace http:// to a URL?

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September 14th, 2003, 01:01 AM

DDDooGGG

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Replace http:// to a URL?

What do i have to do, to do the following:
if somebody pastes a url i.e. http://this address.com, how can i make it into a clickable link when the user submits the form and the message gets displayed on a new page.

I am using the following, but it makes the whole string a link.

PHP Code:


		
			
 eregi_replace("http://","<a href=\"$str\">$str</a>",$str);

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regards,

Fulton

September 14th, 2003, 02:13 AM

numbernine

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You'll want to use a regular expression. Here's one that I found on the web for this purpose.

Code:

        $output = eregi_replace("([[:alnum:]]+)://([^[:space:]]*)([[:alnum:]#?/&=])", "<a href=\"\\1://\\2\\3\" target=\"_blank\" target=\"_new\">\\1://\\2\\3</a>", $strText);

September 14th, 2003, 04:35 AM

DDDooGGG

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Thanks for your help i tried the following as a test, but its not working. any ideas?

PHP Code:


		
			
 dohttp($strText){

 $output = eregi_replace("([[:alnum:]]+)://([^[:space:]]*)([[:alnum:]#?/&=])", "<a href=\"\\1://\\2\\3\" target=\"_blank\" target=\"_new\">\\1://\\2\\3</a>", $strText);

    return($output);

} 

$string = "http://www.link_one.com this is a test";

echo dohttp($string);

September 15th, 2003, 10:17 AM

numbernine

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Sorry! I only gave you half of the function

Code:

<?
  function createHTML($strText) {
        $output = eregi_replace("([[:alnum:]]+)://([^[:space:]]*)([[:alnum:]#?/&=])", "<a href=\"\\1://\\2\\3\" target=\"_blank\" target=\"_new\">\\1://\\2\\3</a>", $strText);
        $output = eregi_replace("(([a-z0-9_]|\\-|\\.)+@([^[:space:]]*)([[:alnum:]-]))", "<a href=\"mailto:\\1\" target=\"_new\">\\1</a>", $output);
        $output = nl2br($output);
        return $output;
  }
$string = "http://www.link_one.com this is a test";
echo createHTML($string);
?>

September 15th, 2003, 10:34 PM

DDDooGGG

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Hi, thanks for that it works great, now i need to differentiate between bbcode and a normal http: link.

my code is below.

PHP Code:


		
			
// Parse BB code

function bbcode($str){ 

        $str = preg_replace('/(\[b\])(.+?)(\[\/b\])/i', '<b>\\2</b>',$str); 

        $str = preg_replace('/(\[i\])(.+?)(\[\/i\])/i', '<i>\\2</i>',$str); 

        $str = preg_replace('/(\[u\])(.+?)(\[\/u\])/i', "<u>\\2</u>", $str);  

        $str = preg_replace('/(\[quote\])(.+?)(\[\/quote\])/i', "<font color=\"660000\">\\2 </font>", $str); 

        $str = preg_replace('/(\[color=(.+?)\])(.+?)(\[\/color\])/i', '<font color=\\2>\\3</font>',$str);        

         $str = preg_replace('/(\[image\])(.+?)(\[\/image\])/i', "<img src=\"\\2\">", $str);

        // Parses web links if not bbcode

        if (substr($str,0, 7) == "http://"){

            $str = eregi_replace("([[:alnum:]]+)://([^[:space:]]*)([[:alnum:]#?/&=])", "<a href=\"\\1://\\2\\3\" target=\"_blank\" target=\"_new\">\\1://\\2\\3</a>", $str);

        } else {

            $str = preg_replace('/(\[url\])(.+?)(\[\/url\])/i', "<a href=\"http://\\2\" target=\"_blank\">\\2</a>", $str); 

            $str = preg_replace('/(\[url=\])(.+?)(\[\/url\])/i', "<a href=\"http://\\2\" target=\"_blank\">\\2</a>", $str); 

            $str = preg_replace('/(\[url=(.+?)\])(.+?)(\[\/url\])/i', "<a href=\"http://\\2\" target=\"_blank\">\\3</a>", $str); 

        }

        //Parses email links , if not bbcode

        if (substr($str,0, 7) == "mailto:"){

            $str = eregi_replace("(([a-z0-9_]|\\-|\\.)+@([^[:space:]]*)([[:alnum:]-]))", "<a href=\"mailto:\\1\" target=\"_new\">\\1</a>", $str);

        } else{

            $str = preg_replace('/(\[email\])(.+?)(\[\/email\])/i', "<a href=\"mailto:\\2\">\\2 </a>", $str); 

            $str = preg_replace('/(\[email=(.+?)\])(.+?)(\[\/email\])/i', "<a href=\"mailto:\\2\">\\3</a>", $str); 

        }

return $str; 

} 

$string = "[url]http://www.linkone.com[/url] this is 

[url]http://www.linktwo.com[/url]

a test [email]fulton@dynamicart.net[/email]";

echo nl2br(bbcode($string));

the function need to be able to check whether each word begins with http or [url] and then do the correct thing.

April 4th, 2004, 02:10 PM

Spongy

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Doesn't it do that yet?
I haven't checked your function yet, I will implement it myself and test it.
It looks good though...

Cheers,

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