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php值对象模式(三)

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Release： 2016-06-07 17:23:14
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和PHP5不一样的是，PHP4赋值对象资源的时候是拷贝该对象，这个语法的特点本质上和值对象设计模式要求正好吻合。


然而，PHP4不能控制的属性和方法函数在对象之外的可见性，所以实现一个值对象设计模式相对PHP5也有细微的差别。


 假如你回想一下这本书序言中的“对象句柄”部分，它提出了三个 “规则”，当你在PHP4中使用对象去模仿PHP5中的对象句柄时，这三个规则总是适用的：

1.通过指针($obj=&new class;)来创建对象。


2.用指针(function funct(&$obj) param{})来传递对象。


3.用指针(function &some

Related labels：
amp function obj php5
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