复制 Codeigniters 加载函数

发布于 2024-10-24 16:45:51 字数 336 浏览 6 评论 0原文

我最近一直在玩 Codeigniter，看看能从中学到什么。我遇到了加载函数，想知道是否有人知道它是如何完成的。基本上，它看起来像这样：

$this->load->model('Model_name');
$this->Model_name->some_function();

现在 load 显然是一个类，并且创建了一个实例并调用 load。加载包含类“Model_name”并创建它的实例。但我无法解决的部分是，加载类如何创建一个名为“Model_name”的“类变量”以在代码的第二行中使用？我实际上将如何在 php.ini 中实现它？

谢谢。

原文

I have recently been playing around with Codeigniter to see what I can learn from it. I came across the load function and was wondering if anyone knows how its done. Basically, it looks something like:

$this->load->model('Model_name');
$this->Model_name->some_function();

Now load is obviously a class and an instance is created and called load. And load includes the class "Model_name" and creates an instance of it. But the part I cant work out, is how does the load class create a "class variable" named "Model_name" to be used as in the second line of the code? And how would I actually go about implementing this in php.

Thanks.

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墨落画卷 2024-10-31 16:45:51

该类的基本作用是记住所有创建的对象（例如 $this），然后通过引用将新创建的类分配为这些类中的变量。

function Load($className)
{
  $newClass = new $className();
  foreach($this->objects as &$object) //objects is array with created objects
    $object->$className = $newClass;
}

然而，它在后台做的事情远不止这些。您知道您可以打开“loader.php”然后阅读它的作用，对吧？

What the class basicly does is remembering all the created objects ($this for instance) and then assign the newly created class by reference as a variable in those classes.

function Load($className)
{
  $newClass = new $className();
  foreach($this->objects as &$object) //objects is array with created objects
    $object->$className = $newClass;
}

however, it does a lot more stuff in the background than that. You know you can just open 'loader.php' and then read what it does, right?

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