Detailed explanation of the usage of PHP object-oriented reflection function

This article mainly introduces the reflection function and usage of phpObject-oriented, and briefly analyzes the concept and specific usage of php5 object-oriented reflection in the form of examples. Friends who need it can Refer to the following

The example of this article describes the reflection function and usage of PHP object-oriented. Share it with everyone for your reference, the details are as follows:

Personal understanding of the definition of reflection:

First of all, we have to talk about what reflection is. For a novice, the concept of reflection often gives people a feeling that they don't understand it, and they don't know how to operate it.

Reflection refers to: refers to extending the analysis of the PHP program in the PHP running state , and exporting or extracting information about classes, methods, and attributes , detailed information about parameters, etc., also includes comments. This function of dynamically obtaining information and dynamically calling object methods is called reflectionAPI. Reflection is an API for manipulating metamodels in the object-oriented paradigm. It is very powerful and can help us build complex and scalable applications. (Note: This kind of reverse operation in php is actually only fully available after PHP5) I will use an example to illustrate it below:

class test{
     private   $A;
     public   $B;
     protected  $C;
     public function test(){
       return "this is a test function";
     }
}
//实例化一个反射类ReflectionClass
$obj=new ReflectionClass('test');
echo $obj."<br>";
//实例化test类,并访问其test方法
$obj2=$obj->newInstance();
echo $obj2->test();

Personal instance return result:

/** 
* xxx.php 
* ============================================== 
* Copy right 2012-2015 
* ---------------------------------------------- 
* This is not a free software, without any authorization is not allowed to use and spread. 
* ============================================== 
* @Author:YeXianMing 
* @Email:LangWaiShiGe@hotmail.com 
* @Version:zend studio10.6.2 php5.4.38 apache2.2 
*/ 
Class [ class test ] 
{ @@ D:\www\MyProjecttest\index5.php 13-21 - Constants [0] { } 
- Static properties [0] { } 
- Static methods [0] { } 
- Properties [3] 
{ 
Property [ private $A ] 
Property [ public $B ] 
Property [ protected $C ] 
} 
- Methods [1] { 
Method [ 
public method test 
] 
{ 
@@ D:\www\MyProjecttest\index5.php 18 - 20 
} 
} 
}
this is a test function

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