ruby怎么读取php程序保存的mysql数据库里面的乱码数据
我想使用ruby程序读取一个php程序写入的mysql数据库,发现都出来的中文是乱码,类似如下的:刘佳
。
如果用mysql query browser连接,在mysql里面显示也是乱码,
我看了下此数据库编码是utf-8,而且php读取显示在页面上,中文却能正常显示。
那ruby读取出来为什么是乱码呢? 有什么方法可以解决这个问题吗?
require 'active_record' class Student < ActiveRecord::Base end ActiveRecord::Base.establish_connection( adapter: 'mysql2', host: 'xxxx', username: 'xxxx', password: 'xxxx', database: 'xxx_db', encoding: 'utf8' ) puts Student.first.name
输出结果 刘佳
PHP显示的正确结果 刘佳
回复内容:
我想使用ruby程序读取一个php程序写入的mysql数据库,发现都出来的中文是乱码,类似如下的:刘佳
。
如果用mysql query browser连接,在mysql里面显示也是乱码,
我看了下此数据库编码是utf-8,而且php读取显示在页面上,中文却能正常显示。
那ruby读取出来为什么是乱码呢? 有什么方法可以解决这个问题吗?
require 'active_record' class Student < ActiveRecord::Base end ActiveRecord::Base.establish_connection( adapter: 'mysql2', host: 'xxxx', username: 'xxxx', password: 'xxxx', database: 'xxx_db', encoding: 'utf8' ) puts Student.first.name
输出结果 刘佳
PHP显示的正确结果 刘佳
<code>>>> "刘佳".encode('utf-8').decode('latin1') 'å\x88\x98ä½³' </code>
以latin解码了。

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











In MySQL, the function of foreign keys is to establish the relationship between tables and ensure the consistency and integrity of the data. Foreign keys maintain the effectiveness of data through reference integrity checks and cascading operations. Pay attention to performance optimization and avoid common errors when using them.

The main difference between MySQL and MariaDB is performance, functionality and license: 1. MySQL is developed by Oracle, and MariaDB is its fork. 2. MariaDB may perform better in high load environments. 3.MariaDB provides more storage engines and functions. 4.MySQL adopts a dual license, and MariaDB is completely open source. The existing infrastructure, performance requirements, functional requirements and license costs should be taken into account when choosing.

Multiple calls to session_start() will result in warning messages and possible data overwrites. 1) PHP will issue a warning, prompting that the session has been started. 2) It may cause unexpected overwriting of session data. 3) Use session_status() to check the session status to avoid repeated calls.

MySQL and phpMyAdmin can be effectively managed through the following steps: 1. Create and delete database: Just click in phpMyAdmin to complete. 2. Manage tables: You can create tables, modify structures, and add indexes. 3. Data operation: Supports inserting, updating, deleting data and executing SQL queries. 4. Import and export data: Supports SQL, CSV, XML and other formats. 5. Optimization and monitoring: Use the OPTIMIZETABLE command to optimize tables and use query analyzers and monitoring tools to solve performance problems.

AI can help optimize the use of Composer. Specific methods include: 1. Dependency management optimization: AI analyzes dependencies, recommends the best version combination, and reduces conflicts. 2. Automated code generation: AI generates composer.json files that conform to best practices. 3. Improve code quality: AI detects potential problems, provides optimization suggestions, and improves code quality. These methods are implemented through machine learning and natural language processing technologies to help developers improve efficiency and code quality.

In MySQL, add fields using ALTERTABLEtable_nameADDCOLUMNnew_columnVARCHAR(255)AFTERexisting_column, delete fields using ALTERTABLEtable_nameDROPCOLUMNcolumn_to_drop. When adding fields, you need to specify a location to optimize query performance and data structure; before deleting fields, you need to confirm that the operation is irreversible; modifying table structure using online DDL, backup data, test environment, and low-load time periods is performance optimization and best practice.

To safely and thoroughly uninstall MySQL and clean all residual files, follow the following steps: 1. Stop MySQL service; 2. Uninstall MySQL packages; 3. Clean configuration files and data directories; 4. Verify that the uninstallation is thorough.

session_start()iscrucialinPHPformanagingusersessions.1)Itinitiatesanewsessionifnoneexists,2)resumesanexistingsession,and3)setsasessioncookieforcontinuityacrossrequests,enablingapplicationslikeuserauthenticationandpersonalizedcontent.
