Reflection API for PHP

PHP5 adds a new feature: Reflection. This feature enables PHP to reverse-engineer class, interface, function, method and extension. Through PHP code, you can get all the information of an object and interact with it.

PHP’s reflection API means that by analyzing the PHP program while PHP is running, the classes, methods, attributes, parameters and other information to which the object belongs can be derived.

How to use reflection API

Sample code Person.php

##Person class contains one member variable and three members Method

Get the method and property list of the $student object

The ReflectionClass class reports information about a class

Output The result is: name say __set __get

You can also use the class function to obtain the information of the associative array of object attributes

Through the class() function Get class information

Print results:

Through this reflection API, you can use hooks to implement plug-in functions, dynamic proxies, etc.

Dynamic proxy examples found on the Internet

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