$text = preg_replace("/\[url\](\/[$URLSearchString]*)\[\/url\]/ism", '<a href="'.System::baseUrl().'$1">$1</a>', $text);
$text = preg_replace("/\[url\=(\/[$URLSearchString]*)\](.*?)\[\/url\]/ism", '<a href="'.System::baseUrl().'$1">$2</a>', $text);
$text = preg_replace("/\[url\](\/[$URLSearchString]*)\[\/url\]/ism", '<a href="'.System::baseUrl().'$1">$1</a>', $text);
$text = preg_replace("/\[url\=(\/[$URLSearchString]*)\](.*?)\[\/url\]/ism", '<a href="'.System::baseUrl().'$1">$2</a>', $text);