How to solve enumeration problems in php

This article introduces to you how to solve the enumeration problem in PHP. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to you.

Since PHP does not have an enumeration type, sometimes when it needs to be used, it needs to be simulated through other methods. There are many application scenarios. For example, the code needs to use the status field, which has 0　1　2　3. It's possible, but if you write 0,1,2,3 directly in the code, the readability of the code is not very good.

abstract class Enum_UserStatus {

    /**
     * 永久封禁
     */
    const BANNED_FOREVER = 0;

    /**
     * 临时封禁
     */
    const BANNED_TEMPORARILY = 1;

    /**
     * 帐号已注册,未激活
     */
    const NOT_ACTIVATED = 2;

    /**
     * 帐号已注册,已激活,正常使用
     */
    const NORMAL = 3;


}

This can avoid many numbers and make it difficult to remember their meaning, and can also enhance the readability of the code. !

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