关于PHP操作MYSQL数据库,乱码的有关问题,高手达人们,看看帮忙解决一下
关于PHP操作MYSQL数据库,乱码的问题,高手达人们,看看帮忙解决一下
我的情况如下:
我的网页是GB2312编码的,我的数据库的编码是UTF8的,如果我想让数据库里的内容读到网页上,要加上mysql_query("set names gb2312") 这句话,可以解决乱码的问题,这样显示在网页上的就不是乱码了.
但是当我在网页中加入一条插入数据库内容的语句,如果我不加mysql_query("set names gb2312")这句话,他插入数据库的内容是乱码,因为数据库的编码是UTF8,网页中的内容是GB2312编码,所以他显示乱码
但是我加上mysql_query("set names gb2312")这句话后,加入数据库的内容就不会显示乱码
我不明白的是mysql_query("set names gb2312")这句话,可以解决插入到UTF8数据库解决汉字乱码的问题?
mysql_query("set names gb2312")这句话不是设置字符集为GB2312吗?为什么插入UTF8数据库里不会乱码?相反我不加这句话就会显示乱码呢?
高手们帮帮小弟吧
------解决方案--------------------
set names 是用来设置客户端的字符集，与服务端没关系，
set names gb2312 等于是插入之前告诉数据库我是以gb2312的编码进来的，数据库根据进来时的编码来处理它，如果不加这句，数据库就不知道它是以什么编码进来的，这样就出现乱码了
同样道理 查询的时候，用set names gb2312 告诉数据库，我想得到gb2312编码的数据，你给我返回gb2312编码数据吧，数据库就给出gb2312的数据了，如果不加，给出的就是utf-8，显示到网页上就成乱码了
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
AI Hentai Generator
Generate AI Hentai for free.
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's big data structure processing skills
May 08, 2024 am 10:24 AM
Big data structure processing skills: Chunking: Break down the data set and process it in chunks to reduce memory consumption. Generator: Generate data items one by one without loading the entire data set, suitable for unlimited data sets. Streaming: Read files or query results line by line, suitable for large files or remote data. External storage: For very large data sets, store the data in a database or NoSQL.
How to use MySQL backup and restore in PHP?
Jun 03, 2024 pm 12:19 PM
Backing up and restoring a MySQL database in PHP can be achieved by following these steps: Back up the database: Use the mysqldump command to dump the database into a SQL file. Restore database: Use the mysql command to restore the database from SQL files.
How to optimize MySQL query performance in PHP?
Jun 03, 2024 pm 08:11 PM
MySQL query performance can be optimized by building indexes that reduce lookup time from linear complexity to logarithmic complexity. Use PreparedStatements to prevent SQL injection and improve query performance. Limit query results and reduce the amount of data processed by the server. Optimize join queries, including using appropriate join types, creating indexes, and considering using subqueries. Analyze queries to identify bottlenecks; use caching to reduce database load; optimize PHP code to minimize overhead.
How to insert data into a MySQL table using PHP?
Jun 02, 2024 pm 02:26 PM
How to insert data into MySQL table? Connect to the database: Use mysqli to establish a connection to the database. Prepare the SQL query: Write an INSERT statement to specify the columns and values to be inserted. Execute query: Use the query() method to execute the insertion query. If successful, a confirmation message will be output.
How to use MySQL stored procedures in PHP?
Jun 02, 2024 pm 02:13 PM
To use MySQL stored procedures in PHP: Use PDO or the MySQLi extension to connect to a MySQL database. Prepare the statement to call the stored procedure. Execute the stored procedure. Process the result set (if the stored procedure returns results). Close the database connection.
How to create a MySQL table using PHP?
Jun 04, 2024 pm 01:57 PM
Creating a MySQL table using PHP requires the following steps: Connect to the database. Create the database if it does not exist. Select a database. Create table. Execute the query. Close the connection.
How to fix mysql_native_password not loaded errors on MySQL 8.4
Dec 09, 2024 am 11:42 AM
One of the major changes introduced in MySQL 8.4 (the latest LTS release as of 2024) is that the "MySQL Native Password" plugin is no longer enabled by default. Further, MySQL 9.0 removes this plugin completely. This change affects PHP and other app
The difference between oracle database and mysql
May 10, 2024 am 01:54 AM
Oracle database and MySQL are both databases based on the relational model, but Oracle is superior in terms of compatibility, scalability, data types and security; while MySQL focuses on speed and flexibility and is more suitable for small to medium-sized data sets. . ① Oracle provides a wide range of data types, ② provides advanced security features, ③ is suitable for enterprise-level applications; ① MySQL supports NoSQL data types, ② has fewer security measures, and ③ is suitable for small to medium-sized applications.
