php ID prefix formatting class
Database tables usually have an auto-incrementing primary key with a field type of int and named id.
Advantages: Using int type can auto-increment and saves storage space than character type.
Disadvantages: id is a numeric type. When you want to query the data corresponding to an id, it is difficult to determine which data table it is based on the id.
Therefore, we should use int when storing, and perform some processing on the ID when displaying, so that it is easy to tell which table the ID belongs to.
Written the following class to add prefixes to ids and restore prefixed ids.
Prefix.class.php
<?php/**
* ID前缀格式化类
* Date: 2016-10-27
* Author: fdipzone
* Ver: 1.0
*
* Func
* public getPrefixId 生成已加前缀的id
* public getId 还原为id
* public getPrefixType 根据已加前缀id获取前缀类型
*/class Prefix{ // class start
// 定义前缀常量
const USER_TYPE = 'user'; // 用户
const ORDER_TYPE = 'order'; // 订单
const MESSAGE_TYPE = 'message'; // 消息
// 前缀设定
private static $prefix = array(
self::USER_TYPE => 'U',
self::ORDER_TYPE => 'O',
self::MESSAGE_TYPE => 'M'
);
/**
* 创建带前缀的id
* @param Int $id id
* @param Int $prefix_type 类型
* @return String
*/
public static function getPrefixId($id, $prefix_type=''){
// 有自定义前缀类型
if(isset(self::$prefix[$prefix_type])){
return self::$prefix[$prefix_type].$id;
}
// 没有自定义前缀类型
return $id;
}
/**
* 还原为id
* @param String $prefix_id 已加前缀id
* @return Int
*/
public static function getId($prefix_id){
preg_match('/\d+/', $prefix_id, $arr);
if(isset($arr[0])){
return $arr[0];
}
return 0;
}
/**
* 根据已加前缀id获取前缀类型
* @param String $prefix_id 已加前缀id
* @return Int
*/
public static function getPrefixType($prefix_id){
// 获取id前缀
preg_match('/[A-Za-z]+/', $prefix_id, $arr);
if(isset($arr[0])){
$prefix = $arr[0];
// 获取前缀
$prefixs = array_flip(self::$prefix);
if(isset($prefixs[$prefix])){
return $prefixs[$prefix];
}
}
return '';
}
} // class end?>demo.php
<?phprequire 'Prefix.class.php'; // 原始id$user_id = 1001; $order_id = 2016102743765214; $message_id = 109283;echo '<pre class="brush:php;toolbar:false">'; // 已加前缀idecho '1.id加前缀'.PHP_EOL; $prefix_user_id = Prefix::getPrefixId($user_id, Prefix::USER_TYPE); $prefix_order_id = Prefix::getPrefixId($order_id, Prefix::ORDER_TYPE); $prefix_message_id = Prefix::getPRefixId($message_id, Prefix::MESSAGE_TYPE); echo $prefix_user_id.PHP_EOL; echo $prefix_order_id.PHP_EOL; echo $prefix_message_id.PHP_EOL.PHP_EOL; // 前缀类型echo '2.根据已加前缀id获取前缀类型'.PHP_EOL; echo Prefix::getPrefixType($prefix_user_id).PHP_EOL; echo Prefix::getPrefixType($prefix_order_id).PHP_EOL; echo Prefix::getPrefixType($prefix_message_id).PHP_EOL.PHP_EOL; // 还原为原始idecho '3.还原为原始id'.PHP_EOL; echo Prefix::getId($prefix_user_id).PHP_EOL; echo Prefix::getId($prefix_order_id).PHP_EOL; echo Prefix::getId($prefix_message_id).PHP_EOL.PHP_EOL; echo '';?>
Output:
1.id加前缀 U1001 O2016102743765214 M1092832.根据已加前缀id获取前缀类型 user order message3.还原为原始id10012016102743765214109283
Customized prefix constants can be created according to needs.
Source code download address: Click to view
Database tables usually have a field type of int and an auto-increment named id Primary key.
Advantages: Using int type can auto-increment and saves storage space than character type.
Disadvantages: id is a numeric type. When you want to query the data corresponding to an id, it is difficult to determine which data table it is based on the id.
Therefore, we should use int when storing, and perform some processing on the ID when displaying, so that it is easy to tell which table the ID belongs to.
Written the following class to add prefixes to ids and restore prefixed ids.
Prefix.class.php
<?php/**
* ID前缀格式化类
* Date: 2016-10-27
* Author: fdipzone
* Ver: 1.0
*
* Func
* public getPrefixId 生成已加前缀的id
* public getId 还原为id
* public getPrefixType 根据已加前缀id获取前缀类型
*/class Prefix{ // class start
// 定义前缀常量
const USER_TYPE = 'user'; // 用户
const ORDER_TYPE = 'order'; // 订单
const MESSAGE_TYPE = 'message'; // 消息
// 前缀设定
private static $prefix = array(
self::USER_TYPE => 'U',
self::ORDER_TYPE => 'O',
self::MESSAGE_TYPE => 'M'
);
/**
* 创建带前缀的id
* @param Int $id id
* @param Int $prefix_type 类型
* @return String
*/
public static function getPrefixId($id, $prefix_type=''){
// 有自定义前缀类型
if(isset(self::$prefix[$prefix_type])){
return self::$prefix[$prefix_type].$id;
}
// 没有自定义前缀类型
return $id;
}
/**
* 还原为id
* @param String $prefix_id 已加前缀id
* @return Int
*/
public static function getId($prefix_id){
preg_match('/\d+/', $prefix_id, $arr);
if(isset($arr[0])){
return $arr[0];
}
return 0;
}
/**
* 根据已加前缀id获取前缀类型
* @param String $prefix_id 已加前缀id
* @return Int
*/
public static function getPrefixType($prefix_id){
// 获取id前缀
preg_match('/[A-Za-z]+/', $prefix_id, $arr);
if(isset($arr[0])){
$prefix = $arr[0];
// 获取前缀
$prefixs = array_flip(self::$prefix);
if(isset($prefixs[$prefix])){
return $prefixs[$prefix];
}
}
return '';
}
} // class end?>demo.php
<?phprequire 'Prefix.class.php'; // 原始id$user_id = 1001; $order_id = 2016102743765214; $message_id = 109283; echo '<pre class="brush:php;toolbar:false">'; // 已加前缀idecho '1.id加前缀'.PHP_EOL; $prefix_user_id = Prefix::getPrefixId($user_id, Prefix::USER_TYPE); $prefix_order_id = Prefix::getPrefixId($order_id, Prefix::ORDER_TYPE); $prefix_message_id = Prefix::getPRefixId($message_id, Prefix::MESSAGE_TYPE); echo $prefix_user_id.PHP_EOL; echo $prefix_order_id.PHP_EOL; echo $prefix_message_id.PHP_EOL.PHP_EOL; // 前缀类型echo '2.根据已加前缀id获取前缀类型'.PHP_EOL; echo Prefix::getPrefixType($prefix_user_id).PHP_EOL; echo Prefix::getPrefixType($prefix_order_id).PHP_EOL; echo Prefix::getPrefixType($prefix_message_id).PHP_EOL.PHP_EOL; // 还原为原始idecho '3.还原为原始id'.PHP_EOL; echo Prefix::getId($prefix_user_id).PHP_EOL; echo Prefix::getId($prefix_order_id).PHP_EOL; echo Prefix::getId($prefix_message_id).PHP_EOL.PHP_EOL; echo '';?>
Output:
1.id加前缀 U1001 O2016102743765214 M1092832.根据已加前缀id获取前缀类型 user order message3.还原为原始id10012016102743765214109283
Customized prefix constants can be created according to needs.
The above is the content of PHP ID prefix formatting. For more related content, please pay attention to the PHP Chinese website (www. php.cn)!
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
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
7 PHP Functions I Regret I Didn't Know Before
Nov 13, 2024 am 09:42 AM
If you are an experienced PHP developer, you might have the feeling that you’ve been there and done that already.You have developed a significant number of applications, debugged millions of lines of code, and tweaked a bunch of scripts to achieve op
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
Explain JSON Web Tokens (JWT) and their use case in PHP APIs.
Apr 05, 2025 am 12:04 AM
JWT is an open standard based on JSON, used to securely transmit information between parties, mainly for identity authentication and information exchange. 1. JWT consists of three parts: Header, Payload and Signature. 2. The working principle of JWT includes three steps: generating JWT, verifying JWT and parsing Payload. 3. When using JWT for authentication in PHP, JWT can be generated and verified, and user role and permission information can be included in advanced usage. 4. Common errors include signature verification failure, token expiration, and payload oversized. Debugging skills include using debugging tools and logging. 5. Performance optimization and best practices include using appropriate signature algorithms, setting validity periods reasonably,
PHP Program to Count Vowels in a String
Feb 07, 2025 pm 12:12 PM
A string is a sequence of characters, including letters, numbers, and symbols. This tutorial will learn how to calculate the number of vowels in a given string in PHP using different methods. The vowels in English are a, e, i, o, u, and they can be uppercase or lowercase. What is a vowel? Vowels are alphabetic characters that represent a specific pronunciation. There are five vowels in English, including uppercase and lowercase: a, e, i, o, u Example 1 Input: String = "Tutorialspoint" Output: 6 explain The vowels in the string "Tutorialspoint" are u, o, i, a, o, i. There are 6 yuan in total
How do you parse and process HTML/XML in PHP?
Feb 07, 2025 am 11:57 AM
This tutorial demonstrates how to efficiently process XML documents using PHP. XML (eXtensible Markup Language) is a versatile text-based markup language designed for both human readability and machine parsing. It's commonly used for data storage an
Explain late static binding in PHP (static::).
Apr 03, 2025 am 12:04 AM
Static binding (static::) implements late static binding (LSB) in PHP, allowing calling classes to be referenced in static contexts rather than defining classes. 1) The parsing process is performed at runtime, 2) Look up the call class in the inheritance relationship, 3) It may bring performance overhead.
What are PHP magic methods (__construct, __destruct, __call, __get, __set, etc.) and provide use cases?
Apr 03, 2025 am 12:03 AM
What are the magic methods of PHP? PHP's magic methods include: 1.\_\_construct, used to initialize objects; 2.\_\_destruct, used to clean up resources; 3.\_\_call, handle non-existent method calls; 4.\_\_get, implement dynamic attribute access; 5.\_\_set, implement dynamic attribute settings. These methods are automatically called in certain situations, improving code flexibility and efficiency.
