get_called_class()

(PHP 5 >= 5.3.0, PHP 7)

后期静态绑定（"Late Static Binding"）类的名称

说明

获取静态方法调用的类名。

返回值

返回类的名称，如果不是在类中调用则返回FALSE。

范例

Example #1get_called_class()的使用

以上例程会输出：

string(3) "foo"
string(3) "bar"

参见

• get_parent_class() 返回对象或类的父类名
• get_class() 返回对象的类名
• is_subclass_of() 如果此对象是该类的子类，则返回 TRUE

As of PHP 5.5 you can also use "static::class" to get the name of the called class.

Output:
string(3) "Foo"
string(3) "Bar"

get_called_class() in closure-scopes: 

SEE: http://php.net/manual/en/language.oop5.late-static-bindings.php
I think it is worth mentioning on this page, that many uses of the value returned by get_called_function() could be handled with the new use of the old keyword static, as in

versus

I had been using $that:: as my conventional replacement for self:: until my googling landed me the url above. I have replaced all uses of $that with static with success both as 

Since static:: is listed with the limitation: "Another difference is that static:: can only refer to static properties." one may still need to use a $that:: to call static functions; though I have not yet needed this semantic.

When calling dynamic method statically in php 5.6 (under 7) it allows it, but it doesnt work, it incorrectly evaluates class that called our subject class, therefore containing method must be static.

It is possible to write a completely self-contained Singleton base class in PHP 5.3 using get_called_class. 

If you call a static getInstance() function to create a instance of a class from another class, this function have to be static, if it is not static the original name of the caller class and not of the current class get returned.
example: 

Beware that this does not behave as expected if your method is not declared as static! For example:

The result is:
basic
string 'foo'
string 'bar'
basic without static declaration
string 'foo'
string 'bar'
in a class
string 'foo'
string 'bar'
in a class without static declaration
string 'abc'
string 'abc'

Here's a simple way of getting the inheritance tree of a class, no matter which class the function was actually defined in. Will work as a static function method too.

CBA

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