BBCode help

[bloodgoat]

Working on the BBCode section of my shoutbox script. A few errors I can't seem to wrap my head around. Here are the few I have so far:

<?php
for($i=0;$i<count($post);$i++){
	$post[$i][3] = str_replace(":as:", "<img src=\"http://i204.photobucket.com/albums/bb303/img0t/as.png\">", $post[$i][3]);
	$post[$i][3] = str_replace("[b]", "<b>", $post[$i][3]);
	$post[$i][3] = str_replace("[/b]", "</b>", $post[$i][3]);
	$post[$i][3] = str_replace("[i]", "<i>", $post[$i][3]);
	$post[$i][3] = str_replace("[/i]", "</i>", $post[$i][3]);
}
?>

Everything works fine. My trouble is, I'm trying to implement a BBCode URL tag. A bit like so:

<?php
	$post[$i][3] = str_replace("[url=", "<a target=\"_blank\" href=\"", $post[$i][3]);
	$post[$i][3] = str_replace("]", "\">", $post[$i][3]);
	$post[$i][3] = str_replace("[/url], "</a>", $post[$i][3]);
?>

The problem being, since "]" is set as it's own tag with it's own specific string replacement, it destroys the [­b][­/b] and [­i][­/i] tags. On output after putting URL tags in, where bold text WOULD go, it instead looks like: [b">I'm attempting to bold this statement[/b">

 

So, how can I circumvent this? I thought briefly that changing the order of the string replacements might alleviate this, but to no avail. So... any words of wisdom?

[soak]

You need a regex to do it all at once. Although it's not been touched in a while this is still good:

 

http://pear.php.net/package/HTML_BBCodeParser

 

If you've only got url's to do then this may work (untested):

 

$content = preg_replace('!\])+\]([^\[])+\[/url\]!', '<a href="\\1">\\2</a>', $content);

[C.Pearse]

How about this:

 

<?php
    $post[$i][3] = preg_replace('#\[url=(.*?)\](.*?)\[/url\]#i', '<a href="$1">$2</a>', htmlentities($post[$i][3]));
?>

 

Cheers

Chris

[soak]

$content = preg_replace('!\[url=(http://[^\]])+\]([^\[])+\[/url\]!', '<a href="\\1">\\2</a>', $content);

 

Quote to put it in a code block and move the http:// :slap:

[bloodgoat]

Bah, I wish my brain knew how to parse preg_replace strings. It all just looks like nonsense to me.

 

Regardless...

How about this:

 

<?php
    $post[$i][3] = preg_replace('#\[url=(.*?)\](.*?)\[/url\]#i', '<a href="$1">$2</a>', htmlentities($post[$i][3]));
?>

 

Cheers

Chris

This worked just fine, until I noticed it broke my test smiley. The output for that afterwards remains to be the normal <­img src="url"> tag.

[C.Pearse]

Probably because we used htmlentities().

 

Try using this:

 

<?php
    function BBCode($post) {
        $post = htmlentities($post);
        
        $search = array(
                        '#\[b\](.*?)\[/b\]#is',
                        '#\[i\](.*?)\[/i\]#is',
                        '#\[url=(.*?)\](.*?)\[/url\]#i',
                        '#\:as\:#i'
                    );
                    
        $replace = array(
                        '<strong>$1</strong>',
                        '<em>$1</em>',
                        '<a href="$1" title="$2">$2</a>',
                        '<img alt="" src="http://i204.photobucket.com/albums/bb303/img0t/as.png" />'
                    );
                    
        $post = preg_replace($search, $replace, $post);
        
        $post = nl2br($post);
        
        return $post;
    }
    
    for($i = 0; $i < count($post); $i++) {
        $post[$i][3] = BBCode($post[$i][3]);
    }
?>

 

Cheers

Chris