PHP PDO：获取样式FETCH_CLASS和FETCH_INTO获取到私有对象属性？ [英] PHP PDO: Do the fetch styles FETCH_CLASS and FETCH_INTO fetch into private object properties?

问题描述

相当短的问题，这里是一个例子：

Pretty short question, here is an example:

$prepared = $this->pdo->prepare("SELECT * FROM Users WHERE ID = :ID");
$statement = $prepared->execute(array(":ID" => $User_ID))
$result = $statement->fetchAll(PDO::FETCH_CLASS, "User");
//OR
$User = new User();
$result = $statement->fetch(PDO::FETCH_INTO, $User);

（从头开始，可能包含语法错误）

(written from top of the head, could contain syntax errors)

这两个是否直接提取到所述对象的 private 属性中？
我读它也绕过了 __ construct 函数，所以它会绕过私人状态吗？

Do those two directly fetch into the private properties of said objects? I read it also circumvents the __construct function, so will it circumvent private status too?

推荐答案

很简单的答案：是的。

class Foo
{
    private $id;
    public function echoID()
    {
        echo $this->id;
    }
}
$result = $statement->fetchAll(PDO::FETCH_CLASS, "Foo");
$result[0]->echoID(); // your ID

---

Aside：

---

Aside:

这将导致语法错误 $ statement-> fetchAll（PDO :: FETCH_INTO，$ User）; 。您不能使用 fetchAll 方法使用 FETCH_INTO 。

This will cause syntax errors $statement->fetchAll(PDO::FETCH_INTO, $User);. You can't use FETCH_INTO with the fetchAll method.

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