[PHP] Simple BBcode Parse Function

Kadenz · Dec 9, 2006

Here's a quick function I whipped up for a project and thought some people would have some use for it.
Well here it goes, I am working on the list and indent codes.

EDIT: Use Dan's

Below

Usage:

PHP:

echo 'Message:<br />'.parsebb($text);

Currently Parses:
Colors
Fonts
Images
URLs and Emails
Alignment
Font Sizes
Bold, Underline and Italics

Also replaces a url (http://something) with a link.

Enjoy. :D

Dan · Dec 9, 2006

PHP:

function parsebb($body) {
    $find = array(
        "@\n@",
        "@[[:alpha:]]+://[^<>[:space:]]+[[:alnum:]/]@is", 
        "/\[url\=(.+?)\](.+?)\[\/url\]/is",
        "/\[b\](.+?)\[\/b\]/is", 
        "/\[i\](.+?)\[\/i\]/is", 
        "/\[u\](.+?)\[\/u\]/is", 
        "/\[color\=(.+?)\](.+?)\[\/color\]/is",
        "/\[size\=(.+?)\](.+?)\[\/size\]/is", 
        "/\[font\=(.+?)\](.+?)\[\/font\]/is",
        "/\[center\](.+?)\[\/center\]/is",
        "/\[right\](.+?)\[\/right\]/is",
        "/\[left\](.+?)\[\/left\]/is",
        "/\[img\](.+?)\[\/img\]/is",
        "/\[email\](.+?)\[\/email\]/is"
    );
    $replace = array(
        "<br />",
        "<a href=\"\\0\">\\0</a>",
        "<a href=\"$1\" target=\"_blank\">$2</a>",
        "<strong>$1</strong>",
        "<em>$1</em>",
        "<span style=\"text-decoration:underline;\">$1</span>",
        "<font color=\"$1\">$2</font>",
        "<font size=\"$1\">$2</font>",
        "<span style=\"font-family: $1\">$2</span>",
        "<div style=\"text-align:center;\">$1</div>",
        "<div style=\"text-align:right;\">$1</div>",
        "<div style=\"text-align:left;\">$1</div>",
        "<img src=\"$1\" alt=\"Image\" />",
        "<a href=\"mailto:$1\" target=\"_blank\">$1</a>"
    );
    $body = htmlspecialchars($body);
    $body = preg_replace($find, $replace, $body);
    return $body;
}

I just made it into 2 arrays.

Kadenz · Dec 9, 2006

lol, I forgot about that :hehe: thanks again Dan the Man. :D

asgsoft · Dec 11, 2006

How can I get colour coded php bb code?

NetworkTown.Net · Dec 11, 2006

Nice im gonna play around with it, looks fun

Kadenz · Dec 11, 2006

asgsoft said:
How can I get colour coded php bb code?

The code is already there, just use

PHP:

[color=Black]This is Black Text[/color]

asgsoft · Dec 11, 2006

but I mean for php code snippest

Kadenz · Dec 11, 2006

It's the 7th line down in the arrays. <font color=*****>
EDIT: oops, I know what you mean, like the NamePros php bbcode. Well, I have honestly no idea how to do that.

NetworkTown.Net · Dec 11, 2006

im gonna see if i can get javascript to work with it so if you click the button it will enter the bb code in for you then click it agian to close the bb code :D i know its not gonna be easy but if i can get it done ill post it here

Kadenz · Dec 11, 2006

That would be awesome! Thanks.

Alex. · Jan 10, 2007

Im confused, how can i implament this into my php script?

Dan · Jan 10, 2007

Copy the script above your current code inside the PHP tags and when you want to convert something from BB Code to HTML, do:
$variable = parsebb($somevariablewithbbcodeinit);

Alex. · Jan 10, 2007

ok, thanks.
is there a way to convert it back to bbcode? like when you edit a post?

one last thing, will your script format paragraphs?

Matthew. · Jan 10, 2007

manofgames said:
ok, thanks.
is there a way to convert it back to bbcode? like when you edit a post?

one last thing, will your script format paragraphs?

manofgames, You would not convert it in the first place

You would insert the unchanged string into a database (for example) and use this function on the output. That way if you wanted to see the bbcode tags again like in a textarea during edit then simply don't use the function when you output it.

And no it won't format paragraphs

Alex. · Jan 10, 2007

ah, i see.
thanks for your help!

Daniel15 · Jan 11, 2007

Looks very nice, however, I noticed two (minor) problems:
1. The

Code:

"<a href=\"$1\" target=\"_blank\">$2</a>"

line is missing a comma at the end
2. The

Code:

"/\[font\=(.+?)\](.+?)\[\/font\]/is",

item in the $find array is missing a corresponding item in the $replace array.

After I fixed these two issues, and try to use the script, I get:

Code:

Warning: preg_replace() [function.preg-replace]: Empty regular expression in /var/www/temp/testbb.php on line 38

Warning: preg_replace() [function.preg-replace]: Unknown modifier '+' in /var/www/temp/testbb.php on line 38

I'm using PHP 5.2.0.

Dan · Jan 11, 2007

Go to post 2.

Daniel15 · Jan 11, 2007

Those little errors are gone, but the two warnings I got are still there...
What version of PHP are you using for testing?

brianmn · Jan 11, 2007

This is some nice coding, although for doing bbcode on my site I have always stuck with using the bbcode engine from forums....I then simply integrate the bbcode engine that is used in the forums on my site with other areas of the site that I need to parse bbcode.

But then again that requires you to have forums on your site.

Anyway thanks for the code, I'll keep this code handy so that when I need it I can use it.

Dan · Jan 11, 2007

I wasn't testing at all..

I just tested this and it works though:

PHP:

function parsebb($body) {
    $find = array(
        "@\n@",
        "@[[:alpha:]]+://[^<>[:space:]]+[[:alnum:]/]@is", 
        "/\[url\=(.+?)\](.+?)\[\/url\]/is",
        "/\[b\](.+?)\[\/b\]/is", 
        "/\[i\](.+?)\[\/i\]/is", 
        "/\[u\](.+?)\[\/u\]/is", 
        "/\[color\=(.+?)\](.+?)\[\/color\]/is",
        "/\[size\=(.+?)\](.+?)\[\/size\]/is", 
        "/\[font\=(.+?)\](.+?)\[\/font\]/is",
        "/\[center\](.+?)\[\/center\]/is",
        "/\[right\](.+?)\[\/right\]/is",
        "/\[left\](.+?)\[\/left\]/is",
        "/\[img\](.+?)\[\/img\]/is",
        "/\[email\](.+?)\[\/email\]/is"
    );
    $replace = array(
        "<br />",
        "<a href=\"\\0\">\\0</a>",
        "<a href=\"$1\" target=\"_blank\">$2</a>",
        "<strong>$1</strong>",
        "<em>$1</em>",
        "<span style=\"text-decoration:underline;\">$1</span>",
        "<font color=\"$1\">$2</font>",
        "<font size=\"$1\">$2</font>",
        "<span style=\"font-family: $1\">$2</span>",
        "<div style=\"text-align:center;\">$1</div>",
        "<div style=\"text-align:right;\">$1</div>",
        "<div style=\"text-align:left;\">$1</div>",
        "<img src=\"$1\" alt=\"Image\" />",
        "<a href=\"mailto:$1\" target=\"_blank\">$1</a>"
    );
    $body = htmlspecialchars($body);
    $body = preg_replace($find, $replace, $body);
    return $body;
}

[PHP] Simple BBcode Parse Function

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