PHP乱码的有关问题【注:不是连接数据库乱码】
PHP乱码的问题【注:不是连接数据库乱码】
环境:XP系统, PHP 5.3.4, Apache web server 2.2, mysql 5.5
- PHP code
<!-- Code highlighting produced by Actipro CodeHighlighter (freeware) http://www.CodeHighlighter.com/ --> try{ $mysqli = new mysqli("localhost","username","password","db1",3306); //当mysql服务没开启时... if($mysqli->connect_errno){ //注:SqlException是直接继承Exception的自定义类。 // echo $mysqli->connect_error; //乱码的来源... throw new SqlException($mysqli->connect_error,$mysqli->connect_errno); } }catch(SqlException $e){ echo $e->getMessage(); //乱码 }
当mysql数据库服务没启动的时候,上面的php语句输出一堆乱码(错误号:2002)……
网上有调用$mysqli->query("set names gbk")等的需要使用$mysqli对象的都不行,因为$mysqli都还没连接,调用其它函数会报错……
(mysql数据库正常启动后,其它数据库连接错误显示的却是英文,不再出现乱码了……)
怀疑是XP系统下语系设置的问题,导致$mysqli->connect_error返回中文,结果变乱码了……但其它类型的数据库错误($mysqli->error)返回的却是英文……
请问下这种情况怎么处理啊?
先谢谢了~
------解决方案--------------------
在网页上吗? 先改变一下页面编码(浏览器菜单上)看看到底是什么编码及内容, utf8或gbk,
然后如果connect_errno=2002就自己转一下编码...
也可以用自己的message代替该信息....
------解决方案--------------------
------解决方案--------------------
是的 确实 这样
------解决方案--------------------
首先是你PHP的网页头文的显示的编码
然后记得set name UTF-8 或者GBK 或者GB2312 但是要和网页头里的一样
------解决方案--------------------
2002 就是 Can't connect to local MySQL server through socket '/tmp/mysql.sock'
所以你完全可以不细究.
应该和你的mysql client api的版本及设置有关
实在想知道可以照楼上唠叨说的把信息贴上来
------解决方案--------------------
今天学了,,想应该是你下载的数据库,不对汉字处理 啊,,记得是,一个是 V6 版本,还有一个是v9
------解决方案--------------------
用记事本打开文件 然后点:文件-另存为-编码选择UTF-8 最后就OK啦
------解决方案--------------------
又见乱码问题……你确认所有的文件格式都是UTF-8,页面字符集也是UTF-8么?
------解决方案--------------------
gbk 编码的:由于目标机器积极拒绝,无法连接。
mysql 客户端会根据你所使用的操作系统的默认语言产生本地化的错误信息

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

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.

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.

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 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.

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

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.

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 use MySQLi to establish a database connection in PHP: Include MySQLi extension (require_once) Create connection function (functionconnect_to_db) Call connection function ($conn=connect_to_db()) Execute query ($result=$conn->query()) Close connection ( $conn->close())
