bbcode help

[MDanz]

when posting a new message on my forum and it contains a url.  How do i automatically add the bbcode url tags to a url in the message?

 

 

[Adam]

That depends. Are you using the traditional title syntax? If so, you could use preg_replace with a regex like:

 

$str = preg_replace('/\[url=http://(.+?)\](.+?)\[/url\]/', '<a href="$1">$2</a>', $str);

 

Edit: remove "http://" from the regex, for some reason the forum's adding it in.

[MDanz]

i'm using these url tags, with the url inbetween.

 

[url][/url]

 

 

[Adam]

Just need to modify the regex a little:

 

$str = preg_replace('/\[url\](.+?)\[\/url\]/', '<a href="$1">$1</a>', $str);

[MDanz]

thanks for the help... ok i'm trying this but it is not working.  It doesn't turn the text into a hyperlink.

$info = mysql_real_escape_string($_POST['content']);

$data = preg_replace('/\[url\](.+?)\[\/url\]/', '<a href="$1">$1</a>', $info);

echo $data;

 

$info is e.g. www.google.com  ... when i put mouseover it , it's not a hyperlink

[Adam]

After you define $info, can you just add in var_dump($info); and post the output? I did a quick test with the code below and it worked.

 

$info = '[url=http://google.co.uk]http://google.co.uk[/url]';

$data = preg_replace('/\[url\](.+?)\[\/url\]/', '<a href="$1">$1</a>', $info);

echo $data;

[MDanz]

here's the var dump.

 

string(19) "www.google.com test" 

 

it should add the url tags around the google url.

[Adam]

I see, sorry I misread your OP. I thought you were wanting to convert BBCode URL tags to a link. So you want to look for valid URLs and convert to url here?

 

thanks for the help... ok i'm trying this but it is not working.  It doesn't turn the text into a hyperlink.

(...)

$info is e.g. www.google.com  ... when i put mouseover it , it's not a hyperlink

 

Of course converting the URLs to BBCode tags won't make the link clickable, you'd need to convert the URL to a hyper-link for that.

 

Can you just confirm which output you're after?

[MDanz]

yes to your 1st question.  i have this bbcode which works if i put the url tags around a url.

 

function BBCode($string){

$string = nl2br(htmlspecialchars($string));

$patterns = array(

                                    '`\[b\](.+?)\[/b\]`is',
                                    '`\[i\](.+?)\[/i\]`is',
                                    '`\[u\](.+?)\[/u\]`is',
                                    '`\[strike\](.+?)\[/strike\]`is',
                                    '`\[color=#([0-9]{6})\](.+?)\[/color\]`is',
                                    '`\[email\](.+?)\[/email\]`is',
                                    '`\[img\](.+?)\[/img\]`is',
                                    '`\[url=([a-z0-9]+://)([\w\-]+\.([\w\-]+\.)*[\w]+(:[0-9]+)?(/[^ \"\n\r\t<]*?)?)\](.*?)\[/url\]`si',
                                    '`\[url\]([a-z0-9]+?://){1}([\w\-]+\.([\w\-]+\.)*[\w]+(:[0-9]+)?(/[^ \"\n\r\t<]*)?)\[/url\]`si',
                                    '`\[url\]((www|ftp)\.([\w\-]+\.)*[\w]+(:[0-9]+)?(/[^ \"\n\r\t<]*?)?)\[/url\]`si',
                                    '`\[flash=([0-9]+),([0-9]+)\](.+?)\[/flash\]`is',
                                    '`\[quote\](.+?)\[/quote\]`is',
                                    '`\[indent](.+?)\[/indent\]`is',
                                    '`\[size=([1-6]+)\](.+?)\[/size\]`is'


                                );

$replaces =  array(

                                    '<strong>\\1</strong>',
                                    '<em>\\1</em>',
                                    '<span style="border-bottom: 1px dotted">\\1</span>',
                                    '<strike>\\1</strike>',
                                    '<span style="color:#\1;">\2</span>',
                                    '<a href="mailto:\1">\1</a>',
                                    '<img src="\1" alt="" style="border:0px;" />',
                                    '<a href="\1\2">\6</a>',
                                    '<a href="\1\2">\1\2</a>',
                                    '<a href="http://\1">\1</a>',
                                    '<object width="\1" height="\2"><param name="movie" value="\3" /><embed src="\3" width="\1" height="\2"></embed></object>',
                                    '<strong>Quote:</strong><div style="margin:0px 10px;padding:5px;background-color:#000000;border:1px dotted #CCCCCC;width:80%;"><em>\1</em></div>',
                                    '<pre>\\1</pre>',
                                    '<h\1>\2</h\1>'



                                    );


$string = preg_replace($patterns, $replaces , $string);

return $string;
}
   

 

but that only works if i put the url tags around the url.  how do i put the tags around a url automatically... like this forum.

 

[Adam]

Gotchya!

 

Okay, you need a regex then that is able to match valid URLs. I'm not going to write one because there's so many examples available on the net, and they can get complicated.

 

Using a random one I came across:

 

$info = 'http://google.co.uk';

$data = preg_replace('/((http|ftp|https):\/\/[\w\-_]+(\.[\w\-_]+)+([\w\-\.,@?^=%&:\/~\+#]*[\w\-\@?^=%&\/~\+#])?)/', '[url=http://$1]$1[/url]', $info);

echo $data;

 

Again need to remove the "http://" in the second parameter, the forum's adding it in for some reason.

[MDanz]

THANKS!! it works.