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)
{...
似乎无法在网上找到结论性的答案...