phpcms搜索不到内容的解决方法

if(!empty($segment_q)) {
$sql = “`siteid`= ‘$siteid’ AND `typeid` = ‘$typeid’ $sql_time AND MATCH (`data`) AGAINST (‘$segment_q’ IN BOOLEAN MODE)”;
} else {
$sql = “`siteid`= ‘$siteid’ AND `typeid` = ‘$typeid’ $sql_time AND `data` like ‘%$q%'”;
}

if(!empty($segment_q)) {
$sql = “`siteid`= ‘$siteid’ AND `typeid` = ‘$typeid’ $sql_time AND `data` like ‘%$q%'”;
} else {
$sql = “`siteid`= ‘$siteid’ AND `typeid` = ‘$typeid’ $sql_time AND `data` like ‘%$q%'”;
}

$data = $this->content_db->select($where, ‘*’);

$data = $this->content_db->select($where, ‘*’,”,’id desc’);