PHP中的戏法方法
PHP中的魔术方法
常用的魔术方法有:
__construct(), __destruct(), __call(), __callStatic(), __get(), __set(), __isset(), __unset(), __sleep(), __wakeup(), __toString(), __invoke(), __set_state(), __clone() 和 __debugInfo()
自己对魔术方法的一些理解:
1、php对象在某些特定操作的时候,会调用特定的魔术方法。如构造对象时调用__construct()。
2、在面向对象编程时,__call()会有比较大的用处。对于__call()的解释:在对象中调用一个不可访问方法时,__call() 会被调用。一些框架中,通过__call()将路由信息和对象方法联系到一起,比如CI框架。
3、关于__clone()的用途:当复制完成时,如果定义了 __clone() 方法,则新创建的对象(复制生成的对象)中的 __clone() 方法会被调用,可用于修改属性的值(如果有必要的话)。

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