$ this关键字是什么意思? [英] What is $this keyword meant for?
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问题描述
请向我解释$this
和->
代表什么...让我们以以下代码为例...
Please explain me that for what $this
and ->
stands for...lets take the example of following code...
$this->convertNamesToCaptions($order, $formId)
推荐答案
$ this指向当前对象
$this refers to the current object
手册说:
当从对象上下文中调用方法时,伪变量$ this可用. $ this是对调用对象的引用(通常是该方法所属的对象,但如果从辅助对象的上下文中静态调用该方法,则可能是另一个对象).
The pseudo-variable $this is available when a method is called from within an object context. $this is a reference to the calling object (usually the object to which the method belongs, but possibly another object, if the method is called statically from the context of a secondary object).
小例子:
class Test
{
private $var;
public function func()
{
$this->var = 1;
return $this->var;
}
}
$obj = new Test();
$obj->func();
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