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魔术方法php,__ call __get和__set?

[英]Magic Methods php, __call __get and __set?

my question is, say we have a class: 我的问题是,我们有一堂课:

class SomeClass{

    private $someProperty;


    public function __call($name,$arguments){
        echo "Hello World";
}

Now when I say: 现在当我说:

$object = new SomeClass();
$object->someMethod();

the __call method in my class will be called. 我的类中的__call方法将被调用。

When I say 当我说

$object->getSomeProperty();

will __call again be called? 将__call再次被调用? If so, what is __get and __set magic methods are for? 如果是这样,那么__get和__set魔术方法是什么用的?

When I say 当我说

$object->someProperty;

then will __get($someProperty) be called? 然后会调用__get($ someProperty)? or will it be __set($someProperty) ? 或者它会__set($ someProperty)?

Anytime an inaccessible method is invoked __call will be called. 无论何时调用不可访问的方法,都会调用__call

Anytime you try to read a property __get will be called, whether it's echo $obj->prop; 无论何时尝试读取属性,都会调用__get ,无论是echo $obj->prop; or $var = $obj->prop; $var = $obj->prop;

And lastly, anytime you try to write to a property the __set magic method will be called. 最后,无论何时尝试写入属性,都会调用__set魔术方法。

will __call again be called? 将__call再次被调用?

Yes. 是。

If so, what is __get and __set magic methods are for? 如果是这样,那么__get和__set魔术方法是什么用的?

see below: 见下文:

When I say 当我说

 $object->someProperty; 

then will __get($someProperty) be called? 然后会调用__get($ someProperty)? or will it be __set($someProperty) ? 或者它会__set($ someProperty)?

__get('someProperty') because this expression is not an assignment. __get('someProperty')因为这个表达式不是赋值。

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