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In this article, we will discuss the object replication technology of PhP5 in a simple and in-depth manner. In this article, please respect copyright errors or
This article is to share with you about how to understand the object reference in PHP, shallow copy and deep copy, the need for friends can refer to
Many novice phper to OOP programming is easy to ignore these concepts, the recent reading of the
Http://www.cnblogs.com/taijun/p/4208008.htmlLet's talk about deep-copy and shallow-copy popular understandingDeep copy: Assignment value is fully copied, full copy, change to one of them, does not affect anotherShallow copy: When assigned, the
Preface:in PHP, "=" is an assignment symbol, a deep copy for a normal variable, and a shallow copy for an object (the assignment of an object is a reference assignment).Note: When an object is passed as a parameter, it is also a reference pass,
This article mainly provides you with a deep understanding of the copy module (shortest copy and deep copy) in python and has some reference value, if you are interested, refer to the introduction of the copy module in python.
The copy module
Transferred from: http://cnn237111.blog.51cto.com/2359144/1283163PHP provides an object copy operation, clone. The syntax is quite simple:$a = Clone $b;1. Shallow copyThe above expression gets the A object that duplicates the B object. If the
This article mainly introduces the shallow copy and deep copy code of JavaScript objects in detail, which has some reference value. If you are interested, you can refer to it. the following small series will bring you an article on object-oriented
The origin of object replication Why do objects have the concept of "copy", which is closely related to the way objects are transmitted in PHP5, let's take a look at this simple piece of code PHP Code * /** * * TV class * */ * Class
Let's talk about deep-copy and shallow-copy popular understandingDeep copy: Assignment value is fully copied, full copy, change to one of them, does not affect anotherShallow copy: When assigned, the reference is assigned, which is equivalent to
An example of shallow copy and deep copy in PHP
Objective:
Having recently studied the design pattern, we have noticed a shallow copy and deep replication problem when we see the prototype pattern. Here to summarize, remind yourself must pay more
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