search
HomeBackend DevelopmentPHP Tutorial为什么本地测试正常 上传后就会出现插入数据库乱码解决思路

为什么本地测试正常 上传后就会出现插入数据库乱码
php+sql 前后台都用的utf8 本地一切正常 上传后读取也正常 但是通过页面插入到数据库的中文全都是问号 怎么回事

每个页面都设置了

每次连接数据库后都设置了
$dbh->exec("SET CHARACTER SET utf8");
mysql数据库表和每个字段的编码都是utf8_generate_ci
本地一切正常 上传到服务器插入的汉字全是问号 
谁帮帮我啊 都快哭了

------解决方案--------------------
mssql? 嗯 方向对了 编码问题. 不过mysql 是 set names 'utf8',mssql 我就不清楚了。应该是这句语句不正常吧
------解决方案--------------------

探讨

引用:
mssql? 嗯 方向对了 编码问题. 不过mysql 是 set names 'utf8',mssql 我就不清楚了。应该是这句语句不正常吧
是mysql exec("SET CHARACTER SET utf8");这种方法是正确的 我设了set names 'utf8'也还是没用 我真快哭了

------解决方案--------------------
看看从本地数据库导出的编码格式是不是都是UTF-8,如果是的话看导出后的中文内容是不是问号,然后导入到服务器那边的数据库的编码是不是都是UTF-8.应该是格式不一致的原因,再有楼上说的应该是mysql吧,语句应该是mysql_query("SET NAMES 'utf-8'");
------解决方案--------------------
PHP页面加上试试:
header('Content-Type:text/html;charset=utf-8');
------解决方案--------------------
还是牛哥慧眼,我前面写错了,是utf8!你在phpadmin的首页看看 MySQL 连接校对是不是utf8_generate_ci
还有就是Language是不是中文-Chinese simplified,如果都没问题的话就点导出,然后再看文件的字符集是不是utf8,如果是的话,你就点下面的执行,这样数据就可以导出来了,然后导入的话也是要看清楚这3项是否跟你导出的时候一致,这样就应该可以了
Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
How does PHP identify a user's session?How does PHP identify a user's session?May 01, 2025 am 12:23 AM

PHPidentifiesauser'ssessionusingsessioncookiesandsessionIDs.1)Whensession_start()iscalled,PHPgeneratesauniquesessionIDstoredinacookienamedPHPSESSIDontheuser'sbrowser.2)ThisIDallowsPHPtoretrievesessiondatafromtheserver.

What are some best practices for securing PHP sessions?What are some best practices for securing PHP sessions?May 01, 2025 am 12:22 AM

The security of PHP sessions can be achieved through the following measures: 1. Use session_regenerate_id() to regenerate the session ID when the user logs in or is an important operation. 2. Encrypt the transmission session ID through the HTTPS protocol. 3. Use session_save_path() to specify the secure directory to store session data and set permissions correctly.

Where are PHP session files stored by default?Where are PHP session files stored by default?May 01, 2025 am 12:15 AM

PHPsessionfilesarestoredinthedirectoryspecifiedbysession.save_path,typically/tmponUnix-likesystemsorC:\Windows\TemponWindows.Tocustomizethis:1)Usesession_save_path()tosetacustomdirectory,ensuringit'swritable;2)Verifythecustomdirectoryexistsandiswrita

How do you retrieve data from a PHP session?How do you retrieve data from a PHP session?May 01, 2025 am 12:11 AM

ToretrievedatafromaPHPsession,startthesessionwithsession_start()andaccessvariablesinthe$_SESSIONarray.Forexample:1)Startthesession:session_start().2)Retrievedata:$username=$_SESSION['username'];echo"Welcome,".$username;.Sessionsareserver-si

How can you use sessions to implement a shopping cart?How can you use sessions to implement a shopping cart?May 01, 2025 am 12:10 AM

The steps to build an efficient shopping cart system using sessions include: 1) Understand the definition and function of the session. The session is a server-side storage mechanism used to maintain user status across requests; 2) Implement basic session management, such as adding products to the shopping cart; 3) Expand to advanced usage, supporting product quantity management and deletion; 4) Optimize performance and security, by persisting session data and using secure session identifiers.

How do you create and use an interface in PHP?How do you create and use an interface in PHP?Apr 30, 2025 pm 03:40 PM

The article explains how to create, implement, and use interfaces in PHP, focusing on their benefits for code organization and maintainability.

What is the difference between crypt() and password_hash()?What is the difference between crypt() and password_hash()?Apr 30, 2025 pm 03:39 PM

The article discusses the differences between crypt() and password_hash() in PHP for password hashing, focusing on their implementation, security, and suitability for modern web applications.

How can you prevent Cross-Site Scripting (XSS) in PHP?How can you prevent Cross-Site Scripting (XSS) in PHP?Apr 30, 2025 pm 03:38 PM

Article discusses preventing Cross-Site Scripting (XSS) in PHP through input validation, output encoding, and using tools like OWASP ESAPI and HTML Purifier.

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

Atom editor mac version download

Atom editor mac version download

The most popular open source editor

VSCode Windows 64-bit Download

VSCode Windows 64-bit Download

A free and powerful IDE editor launched by Microsoft

WebStorm Mac version

WebStorm Mac version

Useful JavaScript development tools

MantisBT

MantisBT

Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment