Сделал так.)) Код (PHP): $bbcode = array( "'\[size=(1?\d{1,2}|200)\](.*?)\[/size\]'is" => "<span style='font-size: \\1%;'>\\2</span>" "'\[size=(.*?)\](.*?)\[/size\]'is" => "<span style='font-size:200%;'>\\2</span>" ); $text = preg_replace(array_keys($bbcode), array_values($bbcode), $text);