[SOLVED] Decode BBcode?

[pianoman993]

Hello php experts! I have found the matter of decoding bbcode to be very stumping. I have a simple php encoder that works perfectly, but I can't figure out how to properly decode the information as well.

 

Here is my encoder

 

	function bb_encode ($str) {  
    $str = nl2br(htmlentities($str));  
  
    $simple_search = array(  
                //added line break  
                '/\[br\]/is',  
                '/\[b\](.*?)\[\/b\]/is',  
                '/\[i\](.*?)\[\/i\]/is',  
                '/\[u\](.*?)\[\/u\]/is',  
                '/\[url\=(.*?)\](.*?)\[\/url\]/is',  
                '/\[url\](.*?)\[\/url\]/is',  
                '/\[align\=(left|center|right)\](.*?)\[\/align\]/is',  
                '/\[img\](.*?)\[\/img\]/is',  
                '/\[mail\=(.*?)\](.*?)\[\/mail\]/is',  
                '/\[mail\](.*?)\[\/mail\]/is',  
                '/\[font\=(.*?)\](.*?)\[\/font\]/is',  
                '/\[size\=(.*?)\](.*?)\[\/size\]/is',  
                '/\[color\=(.*?)\](.*?)\[\/color\]/is',  
                  //added textarea for code presentation  
               '/\[codearea\](.*?)\[\/codearea\]/is',  
                 //added pre class for code presentation  
              '/\[code\](.*?)\[\/code\]/is',  
                //added paragraph  
              '/\[p\](.*?)\[\/p\]/is',  
                );  
  
    $simple_replace = array(  
			//added line break  
               '<br />',  
                '<strong>$1</strong>',  
                '<em>$1</em>',  
                '<u>$1</u>',  
			// added nofollow to prevent spam  
                '<a href="$1" rel="nofollow" title="$2 - $1">$2</a>',  
                '<a href="$1" rel="nofollow" title="$1">$1</a>',  
                '<div style="text-align: $1;">$2</div>',  
			//added alt attribute for validation  
                '<img src="$1" alt="" />',  
                '<a href="mailto:$1">$2</a>',  
                '<a href="mailto:$1">$1</a>',  
                '<span style="font-family: $1;">$2</span>',  
                '<span style="font-size: $1;">$2</span>',  
                '<span style="color: $1;">$2</span>',  
			//added textarea for code presentation  
			'<textarea class="code_container" rows="30" cols="70">$1</textarea>',  
			//added pre class for code presentation  
			'<pre class="code">$1</pre>',  
			//added paragraph  
			'<p>$1</p>',  
                );  
  
    // Do simple BBCode's  
    $str = preg_replace ($simple_search, $simple_replace, $str);  
  
    return $str;  
}

 

How would I decode the information? Could someone please show me and example ( a simple one would could be finding <strong>...</strong> tags and replacing them with [  b  ]...[  /b  ] tags )

 

Any help would be greatly appreciated! Thank you!

 

- Pianoman993

[pianoman993]

I was able to fix the problem.

 

function bb_decode ($str) {  
    $str = ($str);

$bbcode = array(

	"/\<strong>(.*?)<\/strong>/is" => "[b]$1[/b]",
	"/\<br \/>/is" => ""

);

$str = preg_replace(array_keys($bbcode), array_values($bbcode), $str);
  
    return $str;  
}