致命错误:未捕获的错误:调用数组[closed]上的成员函数rowCount()

问题描述 投票:-2回答:1

由于某种原因,在准备我的SQL语句并获取所有结果后,我无法使用rowCount()

        $_prepQuery="SELECT d_user FROM ts_authentication WHERE (d_token = :token AND d_identifier = :identifier AND d_expire > :time)";

        $_stmt=$_PDO->prepare($_prepQuery);

        $_stmt->execute(array(':token' => $_token,':identifier' => $_identifier,':time' => $_time));

        $_result = $_stmt->fetchAll(); 



        if ($_result->rowCount() == 1)
        {...

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似乎无法在网上找到结论性的答案...

php sql pdo prepared-statement
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