Home Backend Development PHP Tutorial Detailed explanation of steps to save user status using binary in PHP

Detailed explanation of steps to save user status using binary in PHP

May 19, 2018 pm 01:59 PM
php binary state

This time I will bring you a detailed explanation of the steps for using PHP to save user status in binary, and what are the precautions for PHP to use binary to save user status. The following is a practical case, let’s take a look. one time.

Preface

Saving user status is a very common requirement. The general way to save user status is to create multiple fields to store the corresponding user status. For example, if you want to save whether the user is bound to a mobile phone number and QQ, you need 2 fields (mobile, qq) to save.

If you use binary to save the user's status, you only need one field (status) to save multiple user statuses.

Of course, there are some disadvantages to using binary to save. For example, detailed information cannot be stored and can only be used to determine status, and the readability in the database is also relatively poor. Below is a relatively simple Demo.

Code

<?php
/**
 * 使用二进制来保存用户状态
 */
//首先定义4个用户状态
define(&#39;MOBILE&#39;, 1); //手机号绑定
define(&#39;EMAIL&#39;, 2);  //邮箱绑定
define(&#39;WECHAT&#39;, 4); //微信绑定
define(&#39;QQ&#39;, 8);   //QQ绑定
//模拟用户类
class User {
  public $user_name = "";
  public $status = 0; //用来保存用户状态
  function construct($user_name, $status) {
    $this->user_name = $user_name;
    $this->status = $status;
  }
}
//new一个测试用户
$test_user = new User("test_user", 0);
//先判断用户是否绑定了手机号
if (($test_user->status & MOBILE) == MOBILE)
  echo "first:该用户已经绑定手机号,用户状态是:" . $test_user->status . "</br>";
else
  echo "first:该用户没有绑定手机号,用户状态是:" . $test_user->status . "</br>";
//接着该用户去绑定了手机号 微信 和 QQ
$test_user->status = MOBILE | WECHAT | QQ;
//再判断一下用户是否绑定了手机号
if (($test_user->status & MOBILE) == MOBILE)
  echo "second:该用户已经绑定手机号,用户状态是:" . $test_user->status . "</br>";
else
  echo "second:该用户没有绑定手机号,用户状态是:" . $test_user->status . "</br>";
//再判断一下用户有没有绑定邮箱
if (($test_user->status & EMAIL) == EMAIL)
  echo "third:该用户已经绑定邮箱,用户状态是:" . $test_user->status . "</br>";
else
  echo "third:该用户没有绑定邮箱,用户状态是:" . $test_user->status . "</br>";
//然后这个用户解除了手机号绑定
$test_user->status = ($test_user->status & (~MOBILE));
//再次判断用户是否绑定了手机号
if (($test_user->status & MOBILE) == MOBILE)
  echo "fourth:该用户已经绑定手机号,用户状态是:" . $test_user->status . "</br>";
else
  echo "fourth:该用户没有绑定手机号,用户状态是:" . $test_user->status . "</br>";
Copy after login
I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the php Chinese website!

Recommended reading:

Detailed explanation of the steps of implementing multiple linear regression simulation curve algorithm in PHP

How to operate PHP to record visitor browsing information

The above is the detailed content of Detailed explanation of steps to save user status using binary in PHP. For more information, please follow other related articles on the PHP Chinese website!

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
2 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Repo: How To Revive Teammates
4 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Hello Kitty Island Adventure: How To Get Giant Seeds
4 weeks ago By 尊渡假赌尊渡假赌尊渡假赌

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

CakePHP Project Configuration CakePHP Project Configuration Sep 10, 2024 pm 05:25 PM

In this chapter, we will understand the Environment Variables, General Configuration, Database Configuration and Email Configuration in CakePHP.

PHP 8.4 Installation and Upgrade guide for Ubuntu and Debian PHP 8.4 Installation and Upgrade guide for Ubuntu and Debian Dec 24, 2024 pm 04:42 PM

PHP 8.4 brings several new features, security improvements, and performance improvements with healthy amounts of feature deprecations and removals. This guide explains how to install PHP 8.4 or upgrade to PHP 8.4 on Ubuntu, Debian, or their derivati

CakePHP Date and Time CakePHP Date and Time Sep 10, 2024 pm 05:27 PM

To work with date and time in cakephp4, we are going to make use of the available FrozenTime class.

CakePHP File upload CakePHP File upload Sep 10, 2024 pm 05:27 PM

To work on file upload we are going to use the form helper. Here, is an example for file upload.

CakePHP Routing CakePHP Routing Sep 10, 2024 pm 05:25 PM

In this chapter, we are going to learn the following topics related to routing ?

Discuss CakePHP Discuss CakePHP Sep 10, 2024 pm 05:28 PM

CakePHP is an open-source framework for PHP. It is intended to make developing, deploying and maintaining applications much easier. CakePHP is based on a MVC-like architecture that is both powerful and easy to grasp. Models, Views, and Controllers gu

How To Set Up Visual Studio Code (VS Code) for PHP Development How To Set Up Visual Studio Code (VS Code) for PHP Development Dec 20, 2024 am 11:31 AM

Visual Studio Code, also known as VS Code, is a free source code editor — or integrated development environment (IDE) — available for all major operating systems. With a large collection of extensions for many programming languages, VS Code can be c

CakePHP Creating Validators CakePHP Creating Validators Sep 10, 2024 pm 05:26 PM

Validator can be created by adding the following two lines in the controller.

See all articles