


When using php to insert Chinese data into the Mysql database, the database displays garbled characters
1. I wrote php code to insert a field value with Chinese characters into the mysql database. Viewing it in phpMyadmin shows garbled characters, and viewing it in the mysql console is also garbled. I have changed the sorting rule of each field to uft8_general_ci in phpmyadmin. Direct insertion shows normal, direct insertion in mysql console also shows normal, but inserting through php is not normal. I also wrote header("Content-Type: text/html;charset=utf-8");
in php code.<code><?php header("Content-Type:text/html;charset=utf-8"); if($con=mysqli_connect('localhost','root','')){ echo '连接成功'; } else{ echo '连接失败'; } if(mysqli_select_db($con,"test")){ echo '选择数据库成功'; } else{ echo '选择数据库失败'; } $str="insert into students(name,age)values('周杰伦','23')"; if(mysqli_query($con,$str)){ echo '插入成功'; } else{ echo '插入失败'; } mysqli_close($con);//关闭数据库 ?></code>
3. Could someone please help me figure out where the problem is?
Reply content:
1. I wrote php code to insert a field value with Chinese characters into the mysql database. Viewing it in phpMyadmin shows garbled characters, and viewing it in the mysql console is also garbled. I have changed the sorting rule of each field to uft8_general_ci in phpmyadmin. Direct insertion shows normal, direct insertion in mysql console also shows normal, but inserting through php is not normal. I also wrote header("Content-Type: text/html;charset=utf-8");
in php code.<code><?php header("Content-Type:text/html;charset=utf-8"); if($con=mysqli_connect('localhost','root','')){ echo '连接成功'; } else{ echo '连接失败'; } if(mysqli_select_db($con,"test")){ echo '选择数据库成功'; } else{ echo '选择数据库失败'; } $str="insert into students(name,age)values('周杰伦','23')"; if(mysqli_query($con,$str)){ echo '插入成功'; } else{ echo '插入失败'; } mysqli_close($con);//关闭数据库 ?></code>
3. Could someone please help me figure out where the problem is?
See if your database table contains normal Chinese characters, then try to solve the problem when inserting data. Unicode format:
Make sure the database, table, and field settings are all
utf-8
Make sure the character set when connecting to the database is
utf-8
Make sure the program file is
utf-8
Make sure the configuration file of the mysql installer is set to characters
utf-8
I found the key to the problem. I tried both of the two answers below, but it didn’t work. The problem was that the mysql.ini configuration was missing a sentence of default-character-set = utf8. I installed wampserver and used this software myself. The mysql.ini of the installed mysql does not have that sentence, and if you add this sentence, you cannot add it randomly. It must be added at the location pointed out in my picture
Use show variables like 'character_set_%; to view the character encoding after modifying the ini file as shown below
You need to set mysql encoding and execute sql "set names utf8"
Try setting the character set
<code>mysqli_set_charset($con, "utf8");</code>

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.
