“返回$ this"是什么意思?意思是? [英] What does "return $this" mean?
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问题描述
我试图理解这段代码,当我到达最后一行时,我没有理解它. :(
I'm trying to understand this code, and when I arrived at the final line, I didn't get it. :(
我可以帮您找出return $this
是什么意思吗?
Can I have your help in order to find out, what does return $this
mean ?
public function setOptions(array $options) {
$methods = get_class_methods($this);
foreach ($options as $key => $value) {
$method = 'set' . ucfirst($key);
if (in_array($method, $methods)) {
$this->$method($value);
}
}
//???? - return what ?
return $this;
}
更新:
我删除了我的评论以进行更好的澄清.
Update:
I've removed my comments for better clarification.
推荐答案
这种编码方式称为 流畅的界面 . return $this
返回当前对象,因此您可以编写如下代码:
This way of coding is called fluent interface. return $this
returns the current object, so you can write code like this:
$object
->function1()
->function2()
->function3()
;
代替:
$object->function1();
$object->function2();
$object->function3();
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