Converting text to url?

rIkLuNd

In my guestbook, I want a simple text like

http://www.microsoft.com/

to turn out as a link. How should I do this?

Should I user [man]str_replace[/man], or what?!

bretticus

If you can do this with str_replace you deserve some kind of award 😃

try this instead:

$your_string = eregi_replace ( "((ht|f)tps?://[^[:blank:]\r\n]+)", "<a target=\"_blank\" href=\"\\0\">\\0</a>", $your_string);

rIkLuNd

thanks!

rIkLuNd

When I use what you wrote like this:

function encode($str)
{
$str = eregi_replace ( "((ht|f)tps?://[^[:blank:]\r\n]+)", "<a target=\"_blank\" href=\"\0\">\0</a>", $str);
return $str;
}

$m = encode($msg);
echo $m;

This prints: "<a target="_blank" href="

Why?

bretticus

Not sure (probably in the pattern if you follow through). I just use it to search and replace on the whole body of text and it's worked fine for me.

kamy99

bretticus;

That was nifty code!😃

but could you explain to me please what does

"((ht|f)tps?://[^[:blank:]\r\n]+)",

do?

thanx in advance

bretticus

That's my regex pattern, determines what I want to match. In this case any fqdn ([url]ftp://...,http://....,[/url] etc.)

nesvarbu

how about when url begins with www ?

lilleman

Here is a regexp that I've made. I'm using it and it's working fine.

<?php

$string = 'Visit this page: http://www.domain.com/folder/subfolder/data.php?query=achtung&type=';
$string = preg_replace('/https?:\\/\\/(www\\.)?([^\\/ ]+)([^?]+)?(\\?([^ ]+))?/', '<a href="$0">$0</a>', $string);
echo $string;

?>

nesvarbu

But what if there already is a full link like
<a href="www.mysite.com">www.mysite.com</a>

I have found milions scripts wish can convert text url to clickable url, but none of the them works well if there is already a clickable url in the text....Want I you guys thinking???? 🙂

lilleman

Try this:

<?php

$string = 'Visit this page: http://www.domain.com/folder/subfolder/data.php?query=achtung&type=';
$string = preg_replace('/>{0} *https?:\/\/(www\.)?([^\/ ]+)([^?]+)?(\?([^ ]+))? *<{0}/', '<a href="$0">$0</a>', $string);
echo $string;

?>

nesvarbu

Doesnt work, know no text is echoed at all....

lilleman

Another try:

<?php

$string = 'Visit this page: http://www.domain.com/folder/subfolder/data.php?query=achtung&type=';
$string = preg_replace('/(?<!<a[^>]*>)*(https?://(www.)?([^/ ]+)([^?]+)?(?([^ ]+))?)/', '<a href="$1">$1</a>', $string);
echo $string;

?>

Edit:

WTF: It seems like vBulletin adds an extra space to my code... I uploaded it here instead:

http://source.riklund.org/view.php?file=regexp_url.php

nesvarbu

Well that link is not good too:
link code: .....('#(?<!>)https?://......

Bulletin code: ....('/(?<!<a[^>]> )(https?://......

They do not match....

And neither of them works...🙁

nesvarbu

Maybe you could give me a link where I could find the explanations about all those metatags meanings (* / . ? $ ^... and so on ). Then maybe I could wright thet code by myself :/

tekky

Originally posted by nesvarbu
Maybe you could give me a link where I could find the explanations about all those metatags meanings (* / . ? $ ^... and so on ). Then maybe I could wright thet code by myself :/

search the articles posted here on phpbuilders... there is a decent one on regex's there.... or just do a search on google for regular expressions or regexp....