Backend Development
PHP Tutorial
How to use inet_aton and inet_ntoa to process ip address data through mysql
How to use inet_aton and inet_ntoa to process ip address data through mysql
This article will introduce how to use a suitable format to save IP address data in the database, and how to easily compare IP addresses.
1. Save the ip address to the database
Save the ip address in the database. The field is generally defined as:
`ip` char(15) NOT NULL,
Because the maximum length of the ip address (255.255.255.255) is 15, using 15-bit char is enough.
Create table user
CREATE TABLE `user` ( `id` int(11) unsigned NOT NULL AUTO_INCREMENT, `name` varchar(30) NOT NULL, `ip` char(15) NOT NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB;
Insert several pieces of data
INSERT INTO `user` (`id`, `name`, `ip`) VALUES(2, 'Abby', '192.168.1.1'), (3, 'Daisy', '172.16.11.66'), (4, 'Christine', '220.117.131.12');
2.mysql inet_aton and inet_ntoa method
mysql provides two methods to handle ip addresses
##inet_aton Convert ip to unsigned integer Type (4-8 digits)
inet_ntoa Convert integer ip to electrical address
Before inserting data, use inet_atonConvert the ip address to an integer to save space, because char(15) occupies 16 bytes. When displaying data, use
inet_ntoa to convert the integer ip address to an electrical address for display.
Example:
CREATE TABLE `user` ( `id` int(11) unsigned NOT NULL AUTO_INCREMENT, `name` varchar(100) NOT NULL, `ip` int(10) unsigned NOT NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB;
Insert several pieces of data
INSERT INTO `user` (`id`, `name`, `ip`) VALUES(2, 'Abby', inet_aton('192.168.1.1')), (3, 'Daisy', inet_aton('172.16.11.66')), (4, 'Christine', inet_aton('220.117.131.12'));
mysql> select * from `user`; +----+-----------+------------+| id | name | ip | +----+-----------+------------+| 2 | Abby | 3232235777 | | 3 | Daisy | 2886732610 || 4 | Christine | 3698688780 | +----+-----------+------------+
The query is displayed as the email address
mysql> select id,name,inet_ntoa(ip) as ip from `user`; +----+-----------+----------------+| id | name | ip | +----+-----------+----------------+| 2 | Abby | 192.168.1.1 | | 3 | Daisy | 172.16.11.66 || 4 | Christine | 220.117.131.12 | +----+-----------+----------------+
3. Comparison method
If you need to find out Users in a certain network segment (for example: 172.16.11.1 ~ 172.16.11.100) can use PHP's ip2long method to convert the IP address into an integer and then compare.
<?php$ip_start = '172.16.11.1';$ip_end = '172.16.11.100';echo 'ip2long(ip_start):'.sprintf('%u',ip2long($ip_start)); // 2886732545echo 'ip2long(ip_end):'.sprintf('%u',ip2long($ip_end)); // 2886732644?>
Query:
mysql> select ip,name,inet_ntoa(ip) as ip from `user` where ip>=2886732545 and ip<=2886732644; +------------+-------+---------------+| ip | name | ip | +------------+-------+---------------+| 2886732610 | Daisy | 172.16.11.66 | +------------+-------+---------------+
Note: When using the ip2long method to convert the ip address to an integer, for large There will be negative numbers in the ip. For the reasons and solutions, please refer to my other article: "Causes and solutions for negative numbers in php ip2long"
4. Summary
1. Save the IP address to the database in unsigned int format. When inserting, use the inet_aton method to convert the IP address to an unsigned integer first, which can save storage space. 2. Use inet_ntoa to convert the integer ip address to an electrical address when displaying.
3.php When converting ip2long to ip into an integer, you need to pay attention to the occurrence of negative numbers.
Related content about using gzip compression output of php json data
How to use http_build_query through php, parse_url, parse_str creates and parses url
How to implement the shake function through html5
The above is the detailed content of How to use inet_aton and inet_ntoa to process ip address data through mysql. For more information, please follow other related articles on the PHP Chinese website!
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
1659
14
1415
52
1309
25
1257
29
1231
24
Laravel Introduction Example
Apr 18, 2025 pm 12:45 PM
Laravel is a PHP framework for easy building of web applications. It provides a range of powerful features including: Installation: Install the Laravel CLI globally with Composer and create applications in the project directory. Routing: Define the relationship between the URL and the handler in routes/web.php. View: Create a view in resources/views to render the application's interface. Database Integration: Provides out-of-the-box integration with databases such as MySQL and uses migration to create and modify tables. Model and Controller: The model represents the database entity and the controller processes HTTP requests.
Solve database connection problem: a practical case of using minii/db library
Apr 18, 2025 am 07:09 AM
I encountered a tricky problem when developing a small application: the need to quickly integrate a lightweight database operation library. After trying multiple libraries, I found that they either have too much functionality or are not very compatible. Eventually, I found minii/db, a simplified version based on Yii2 that solved my problem perfectly.
MySQL and phpMyAdmin: Core Features and Functions
Apr 22, 2025 am 12:12 AM
MySQL and phpMyAdmin are powerful database management tools. 1) MySQL is used to create databases and tables, and to execute DML and SQL queries. 2) phpMyAdmin provides an intuitive interface for database management, table structure management, data operations and user permission management.
MySQL vs. Other Programming Languages: A Comparison
Apr 19, 2025 am 12:22 AM
Compared with other programming languages, MySQL is mainly used to store and manage data, while other languages such as Python, Java, and C are used for logical processing and application development. MySQL is known for its high performance, scalability and cross-platform support, suitable for data management needs, while other languages have advantages in their respective fields such as data analytics, enterprise applications, and system programming.
Laravel framework installation method
Apr 18, 2025 pm 12:54 PM
Article summary: This article provides detailed step-by-step instructions to guide readers on how to easily install the Laravel framework. Laravel is a powerful PHP framework that speeds up the development process of web applications. This tutorial covers the installation process from system requirements to configuring databases and setting up routing. By following these steps, readers can quickly and efficiently lay a solid foundation for their Laravel project.
Oracle's Role in the Business World
Apr 23, 2025 am 12:01 AM
Oracle is not only a database company, but also a leader in cloud computing and ERP systems. 1. Oracle provides comprehensive solutions from database to cloud services and ERP systems. 2. OracleCloud challenges AWS and Azure, providing IaaS, PaaS and SaaS services. 3. Oracle's ERP systems such as E-BusinessSuite and FusionApplications help enterprises optimize operations.
MySQL: Structured Data and Relational Databases
Apr 18, 2025 am 12:22 AM
MySQL efficiently manages structured data through table structure and SQL query, and implements inter-table relationships through foreign keys. 1. Define the data format and type when creating a table. 2. Use foreign keys to establish relationships between tables. 3. Improve performance through indexing and query optimization. 4. Regularly backup and monitor databases to ensure data security and performance optimization.
Solve MySQL mode problem: The experience of using the TheliaMySQLModesChecker module
Apr 18, 2025 am 08:42 AM
When developing an e-commerce website using Thelia, I encountered a tricky problem: MySQL mode is not set properly, causing some features to not function properly. After some exploration, I found a module called TheliaMySQLModesChecker, which is able to automatically fix the MySQL pattern required by Thelia, completely solving my troubles.
