getter

public static function __get($value) does not work, and even if it did, it so happens that I already need the magic __get getter for instance properties in the same class. This probably is a yes or no question, so, it is possible? No, it is not possible. Quoting the manual page of __get : Member overloading only works in object context. These magic methods will not be triggered in static context. Therefore these methods can not be declared static. In PHP 5.3, __callStatic has been added ; but there is no __getStatic nor __setStatic yet ; even if the idea of having/coding them often comes back

Several questions about accessor methods in C++ have been asked on SO, but none was able satisfy my curiosity on the issue. I try to avoid accessors whenever possible, because, like Stroustrup and other famous programmers, I consider a class with many of them a sign of bad OO. In C++, I can in most cases add more responsibility to a class or use the friend keyword to avoid them. Yet in some cases, you really need access to specific class members. There are several possibilities: 1. Don't use accessors at all We can just make the respective member variables public. This is a no-go in Java, but

yii2 内部规定了 __construct 函数的构造形式，以键值对儿数组作为参数，进行属性的初始化，但要注意给属性赋值的工作是转交给基类 yii\base\Yii::configure 方法的，故无法直接访问本类的私有属性进行初始化工作 ，但我们可以使用属性的 setter/getter 方法来完成 yii\base\Object yii2 在实例化一个类时可以将此类的属性以 key=>value 的数组形式传参初始化本类的一些属性 所有的组件的构造函数都继承至 yii\base\Object::__construct() 这里需要注意的是，yii2 以安全为原则，并没有将类的私有属性开放给初始化的参数数组，原因是 __construct 中的初始工作是调用的 yii\base\Yii::configure() 方法，上下文切换到本类外部，无法访问私有变量（这里便引出了 php 的私有变量访问域和 __set/__get魔术方法） /** * Constructor. * The default implementation does two things: * * - Initializes the object with the given configuration `$config`. * - Call [[init()]]. * * If this method is

How do I emulate PHP-style __get() and __set() magic getter/setters in JavaScript? A lot of people say that this is currently impossible. I am almost certain that it is possible because projects like nowjs ( http://nowjs.com ) do something like this. I know that you can utilize get and set , but these don't work when you're not sure what the property name will be. For example, what if you wanted an event handler to execute when a new property is created ? Example of what I'd want to do: var obj = {}; notify(obj, function(key, value) { //key is now the name of the property being set. //value is

This question already has an answer here: Why use getters and setters/accessors? [closed] 38 answers Allen Holub wrote the following, You can't have a program without some coupling. Nonetheless, you can minimize coupling considerably by slavishly following OO (object-oriented) precepts (the most important is that the implementation of an object should be completely hidden from the objects that use it). For example, an object's instance variables (member fields that aren't constants), should always be private. Period. No exceptions. Ever. I mean it. (You can occasionally use protected methods