$ this实际意味着什么> Codeigniter [英] What does $this actually mean> Codeigniter
问题描述
愚蠢的问题我知道,
在所有教程中,他们不解释为什么他们使用$ this。
From all the tutorials they do not explain why they use $this.
是$这是一个来自Codeigniter基类的对象吗?
Is $this like an object from a base class in Codeigniter?
欢迎任何解释! :)
感谢
推荐答案
/ strong>你的问题, $ this
实际上代表单例的Codeigniter实例(实际上是控制器对象)。
To actually answer your question, $this
actually represents the singleton Codeigniter instance (which is actually the controller object).
例如,当您加载库/模型时,您将它们附加到此实例,以便您可以将它们作为此实例的属性来引用。
For example when you load libraries/models, you're attaching them to this instance so you can reference them as a property of this instance.
另一种获取方法codeigniter中的实例是在构建可移植库时使用的 get_instance()
函数。
Another way to get this instance in codeigniter is the get_instance()
function that you use when building portable libraries.
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