phpmyadmin-php調用mysqli查詢出錯

phpphpmyadminmysqli

語句直接在命令列運行就能查出接過來，在phpMyAdmin裡面也能查到，但是寫到程式裡就出錯，請大神幫忙看看。


代碼是這個

 $sql =" select * from $table_list where $length_left qq $length_right $textif $t;"; $mysqli = new mysqli("localhost","root","root",'qq_db');$mysqli->set_charset("utf8");if ($mysqli->connect_errno){  die("Connect Error :".$mysqli->connect_error);  }$result = $mysqli->query($sql);var_dump($result);$mysqli->close();sql語句實際輸出的結果是select * from qq_list where length( qq = 5)  and qq like '%1%' and wuzheng;

運行後就提示bool(false)

