BBCode - Tutorial

    function bbcode($bb) {
	    $offset = 0;
	    while(($pos = strpos($bb, '[noparse]', $offset)) !== false) {
	        $end = strpos($bb, '[/noparse]', $pos);
	        if($end === false) break;
	        $noparse = substr($bb, $pos + 9, $end - ($pos + 9));
	        $noparse = str_replace(array('[', ']'), array('[', ']'), $noparse);
	        $end += 10;
	        $bb = substr_replace($bb, $noparse, $pos, $end - $pos);
	        $offset = $end;
	    }
	    $search[] = '[b]';
	    $search[] = '[/b]';
	    $search[] = '[i]';
	    $search[] = '[/i]';
	    $search[] = '[u]';
	    $search[] = '[/u]';
	    $search[] = '[/color]';
	    $search[] = '[/size]';
	    $search[] = '[/font]';
	    $search[] = '[highlight]';
	    $search[] = '[/highlight]';
	    $search[] = '[quote]';
	    $search[] = '[/quote]';
	    $replace[] = '';
	    $replace[] = '';
	    $replace[] = '';
	    $replace[] = '';
	    $replace[] = '';
	    $replace[] = '';
	    $replace[] = '';
	    $replace[] = '';
	    $replace[] = '';
	    $replace[] = '';
	    $replace[] = '';
	    $replace[] = '

	    

	    
Zitat:
	    
	    

	    
';
	    $replace[] = '
	    
	    

';
	    $bb = str_replace($search, $replace, $bb);
	    $search = array();
	    $replace = array();
	    $search[] = '/\[color=(.*?)\]/';
	    $search[] = '/\[size=(.*?)\]/';
	    $search[] = '/\[font=(.*?)\]/';
	    $search[] = '/\[email\](.*?)\[\/email\]/';
	    $search[] = '/\[email=(.*?)\](.*?)\[\/email\]/';
	    $search[] = '/\[url\](.*?)\[\/url\]/';
	    $search[] = '/\[url=(.*?)\](.*?)\[\/url\]/';
	    $search[] = '/\[img\](.*?)\[\/img\]/';
	    $replace[] = '';
	    $replace[] = '';
	    $replace[] = '';
	    $replace[] = '';
	    $replace[] = '';
	    $replace[] = '';
	    $replace[] = '';
	    $replace[] = '';
	    $bb = preg_replace($search, $replace, $bb);
	    $offset = 0;
	    while(strpos($bb, '[list]', $offset) !== false) {
	        $pos = strpos($bb, '[list]', $offset);
	        $end = strpos($bb, '[/list]', $pos);
	        if($end === false) break;
	        $list = trim(substr($bb, $pos + 6, $end - ($pos + 6)));
	        $elements = explode('[*]', $list);
	        $list = '
';
	        for($i = 1; $i < count($elements); $i++) {
	            $list .= '
'.nl2br(rtrim($elements[$i])).'
';
	        }
	        $list .= '
';
	        $end += 7;
	        $offset = $end;
	        $bb = substr_replace($bb, $list, $pos, $end - $pos);
	    }
	    $offset = 0;
	    while(strpos($bb, '[list=', $offset) !== false) {
	        $pos = strpos($bb, '[list=', $offset);
	        $pos2 = strpos($bb, ']', $pos + 6);
	        $type = substr($bb, $pos + 6, $pos2 - ($pos + 6));
	        $end = strpos($bb, '[/list]', $pos2);
	        if($end === false) break;
	        $list = trim(substr($bb, $pos2 + 1, $end - ($pos2 + 1)));
	        $elements = explode('[*]', $list);
	        $list = '
';
	        for($i = 1; $i < count($elements); $i++) {
	            $list .= '
'.nl2br(rtrim($elements[$i])).'
';
	        }
	        $list .= '
';
	        $end += 7;
	        $offset = $end;
	        $bb = substr_replace($bb, $list, $pos, $end - $pos);
	    }
	    $offset = 0;
	    while(($pos = strpos($bb, '[code]0[/code]', $pos);
	        if($end === false) break;
	        $code = substr($bb, $pos + 6, $end - ($pos + 6));
	        $strlen = strlen($code) + 13;
	        $code = '
'.str_replace('', '', $code).'
';
	        $end += 7;
	        $offset = $end - ($strlen - strlen($code));
	        $bb = substr_replace($bb, $code, $pos, $end - $pos);
	    }
	     
	    // Smilies
	    $bb = eregi_replace(';)', '', $bb);
	     
	    return $bb;
	}

    include("bbcode.php");	 
	$message = "Ich bin ein [b]Fetter[/b] Text der auch einen [url=http://google.de]Link[/url] parat hat ;)"; 
	echo $message; // Nachricht unformatiert
	echo "
";	 
	$message = bbcode($message);
 
	echo $message; //Formatierter Text

    include("bbcode.php");
	$message = "Ich bin ein [b]Fetter[/b] Text der auch einen [url=http://google.de]Link[/url] parat hat ;)";
	echo $message; // Nachricht unformatiert
	echo "
";
	 
	$message = nl2br($message); //Hier wird der Text an den sogenannten Enter-Stellen (
) umgebrochen
	$message = bbcode($message); //Wir senden den Text an bbcode und lassen in arbeiten damit er den Text für uns umformatiert
	 
	echo $message; //Formatierter Text