Question

我已经被警告消息困扰了一段时间，却无法弄清。

<a href="works.php? TotalCompletedTasks =3">Tasks under 2</a>
    <?php

    $stmt = $con->prepare("v.MemberID, v.VisitingNumber, count(CompletedTaskID) as TotalCompletedTasks
from Visits v join CompletedTasks c
on v.VisitingNumber = c.VisitingNumber
where TotalCompletedTasks<:TotalCompletedTasks");
$stmt->bindParam(': TotalCompletedTasks', $_GET['TotalCompletedTasks'], PDO::PARAM_INT); 
    $stmt->execute();

Answer 1

$stmt->bindParam(': TotalCompletedTasks', $_GET['TotalCompletedTasks'], PDO::PARAM_INT);

应为：

$stmt->bindParam(':TotalCompletedTasks', $_GET['TotalCompletedTasks'], PDO::PARAM_INT);

也就是说，您的参数名称中有多余的空格。

与“警告：PDOStatement :: execute（）：SQLSTATE [HY093]”有关的问题

1 个答案: