PHP 封装和数据库调用约定

发布于 2024-11-03 06:10:46 字数 866 浏览 4 评论 0原文

这需要一些时间来解释。我正在创建我的第一个真实世界的 Web 应用程序，并且我会正确地完成它。我对 PHP 的经验很少，但在其他语言方面有丰富的经验，所以技术技能不是问题，更多的是语言的约定。我遵循 MVC 模式，并且正处于为应用程序实现用户注册的阶段。

为了标准化与数据库的连接，我创建了一个带有静态 getConnection 方法的 Config 类，该方法创建一个 mysqli 连接对象。这不是问题，问题是接下来的问题。

为了使我的类更具可读性，我在其中内置了各种进行数据库调用的函数。例如，我的 User 类有一个 getFriends 方法，如下所示：

class User
{
   public $id;

   public getFriends()
   {
      return UserController::getFriends($id);
   }
}

但就目前情况而言，如果我以这种方式实现它，则意味着为页面上的每个查询创建一个连接，可能在一个页面中很多次单一脚本，这太可怕了。

我正在考虑做与上面相同的事情，但是向 getFriends 传递一个 mysqli 对象，该对象又将一个对象传递给 UserController::getFriends ，但这感觉很混乱，而且坦率地说形式很差，即使它保证每个脚本只有一个连接，一个更好的改进。

我还考虑过放弃将方法完全保留在 User 内部的想法，而是直接在脚本中进行类似 UserController::getFriends($connection, $id) 的调用，并在开头声明一个 $connection 来代替 user ->getFriends()。这似乎是绝对最干净、最好的解决方案，但我不确定。

那么，本质上来说，PHP 人员通常如何做这类事情呢？

原文

This is going to take a bit to explain. I'm creating my first real-world web application, and I'd to do it properly. I have very little PHP experience, but vast experience in other languages so technical skill isn't a problem, it's more conventions of the language. I'm following the MVC pattern, and I am at the stage where I'm implementing user registration for the application.

To standardise connections to the database, I've created a Config class with a static getConnection method, which creates a mysqli connection object. This isn't a problem, it's the next bit that is.

To make my classes a bit more readable, I have various functions built into them that make database calls. For example, my User class has a getFriends method like so:

class User
{
   public $id;

   public getFriends()
   {
      return UserController::getFriends($id);
   }
}

But as it stands now, if I implement it that way, it means creating a connection for every query on a page, probably many times in a single script, which is just horrific.

I was thinking about doing the same as above, but pass getFriends a mysqli object, which in turn passes one to UserController::getFriends as well, but that feels messy, and frankly poor form, even though it would guarantee only one connection per script, a much better improvement.

I also thought about scrapping the idea of keeping the methods inside User altogether, and instead making calls like UserController::getFriends($connection, $id) directly in the script, with a single $connection declared at the beginning, in place of user->getFriends(). That seems like the absolute cleanest, nicest solution, but I'm unsure.

So, essentially, how do PHP folks normally do this sort of thing?

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放低过去 2024-11-10 06:10:46

我在我的MVC框架中所做的就是创建一个数据库连接并将其分配给Model 基类（在配置中）：

$db = new database\adapters\MySQL(...);
if ( !$db->connected() ) {
  exit('Ewps!');
}

database\Model::dbObject($db);

然后，以后在任何地方，我都可以使用：

User::getFriends(13);

因为 User extends Model 并且 Model 可以访问 $db： self::dbObject()

如果我需要原始数据库连接，我可以使用 Model::dbObject() 或 $GLOBALS['db']，但我很少需要原始连接，因为所有数据库逻辑都应该在您的模型中。

What I do in my MVC framework is create a db connection and assign it to the Model base class (in the config):

$db = new database\adapters\MySQL(...);
if ( !$db->connected() ) {
  exit('Ewps!');
}

database\Model::dbObject($db);

Then later on, anywhere, I can use:

User::getFriends(13);

because User extends Model and Model has access to $db: self::dbObject()

If I need my raw db connection, I either use Model::dbObject() or $GLOBALS['db'], but I rarely do need the raw connection, because all db logic should be in your Models.

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