<?phpclass SelectorItem {    private $item;    public function __construct($item){        $this->item = $item;    }    public function __get($name){        if(isset($this->item->$name)){            return $this->item->$name;        }        return null;    }    public static function createFromApi($num_iid){        $client = new TopClient();        $client->appkey = 'xx';        $client->secretKey = 'xx';        $req = new ItemGetRequest();        $req->setFields('props_name,property_alias,detail_url,cid,title');        $req->setNumIid($num_iid);        $resp = $client->execute($req);        if(isset($resp->code)){            # error handle            throw new Exception($resp->msg, $resp->code);        }        return new self($resp->item);    }}$selectorItem = SelectorItem::createFromApi($_REQUEST["num_iid"]);Logger::trace($selectorItem->props_name);$blackCharList = array();$coreCharList = array();$matchTitle = $selectorItem->title.$selectorItem->props_name;if(preg_match('/男装/', $matchTitle)){    $coreCharList = array(        "男装"    );    $blackList = array(      "女"    );}else if(preg_match('/女装/', $matchTitle)){    $coreCharList = array(        "女装"    );    $blackList = array(        "男"    );}else if(preg_match('/情侣装/', $matchTitle)){    $coreCharList = array(        "情侣装",        "男装",        "女装"    );}else if(preg_match('/童装/',$matchTitle)){    $coreCharList = array(        "童装",        "儿童装",        "女童装",        "男童装"    );}$where = array();foreach($coreCharList as $char){    $where[] = " word LIKE '%$char%'";}foreach($blackCharList as $char){    $where[] = " word NOT LIKE '%$char%'";}if(count($where)>0){    $sql = "SELECT * FROM keywords WHERE ".implode(' AND ',$where);    Logger::trace($sql);    //search database}