PHP PDO:获取样式 FETCH_CLASS 和 FETCH_INTO 是否获取到私有对象属性中?

2021-12-26 00:00:00 database php pdo

很短的问题，这是一个例子:

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);

(从头开始写，可能包含语法错误)

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

这两个是否直接获取到所述对象的私有属性?我读到它也绕过了 __construct 函数，那么它也会绕过私有状态吗?

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

非常简短的回答:是的.

Very short answer: Yes it will.

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

<小时>

旁白:

这会导致语法错误$statement->fetchAll(PDO::FETCH_INTO, $User);.您不能将 FETCH_INTO 与 fetchAll 方法一起使用.

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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