php - PHP PDO 准备 SELECT 语句

Question

我尝试在 php 中使用 PDO 做一个准备好的 SELECT 语句。这是我的声明：

    # named placeholders 
    $STH = $DBH->("SELECT * FROM `highscore_ranked` WHERE DeviceID = :deviceid ORDER BY Points DESC LIMIT 0 , 10");
    $STH->bindValue(':deviceid', $DeviceIDClear);

    # setting the fetch mode
    $STH->setFetchMode(PDO::FETCH_ASSOC);
    $STH->execute();

但我得到了错误：

 PHP Parse error:  syntax error, unexpected '(', expecting T_STRING or T_VARIABLE or '{' or '$'

在这条线上：

 $STH = $DBH->("SELECT * FROM `highscore_ranked` WHERE DeviceID = :deviceid ORDER BY Points DESC LIMIT 0 , 10");

我不知道这条线出了什么问题。

Answer 1

您忘记了方法的名称！！！！

$STH = $DBH->prepare("SELECT * FROM `highscore_ranked` WHERE DeviceID = :deviceid ORDER BY Points DESC LIMIT 0 , 10");