get_object_vars() 与强制转换为数组 [英] get_object_vars() vs. cast to array

问题描述

get_object_vars($obj) 和 (array) $obj 有什么区别吗?

Are there any differences between get_object_vars($obj) and (array) $obj ?

两者似乎都返回对象的公共属性.

Both seem to return the public properties of the object.

哪个更好?

推荐答案

这并不完全正确.

get_object_vars 是作用域敏感的，将返回所有 visible 属性，除了 static 属性，不管它们的可见性如何.如果你在你的班级之外调用它，你只会得到公共成员；从派生类中，您将获得受保护和公共成员；从类本身中，您将获得所有成员.数组键代表属性名称，不会被破坏.

get_object_vars is scope-sensitive and will return all visible properties excepting static properties regardless of their visbility. If you call it from outside your class, you'll only get the public members; from a derived class, you'll get the protected and public members; and from the class itself, you'll get all the members. The array keys represent the property names, and are not mangled.

(array) 转换返回，至少在 PHP 5.3.0 上，所有对象属性，public 和其他.属性的名称根据其保护级别进行了修改:

The (array) cast returns, at least on PHP 5.3.0, all the object properties, public and otherwise. The name of the properties are mangled according to their protection level:

• public:未损坏，与属性名称相同
• protected:属性的键名以*
开头
• private:属性的键名以类名开头

• public: not mangled, identical to property names
• protected: key name for property starts with a *
• private: key name for property starts with the name of the class

参见转换为数组 了解更多信息.

我希望您能够更好地了解哪一种最适合您的情况.

I hope you'll be able to better understand which one is the most appropriate for your situation.

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