Home Backend Development PHP Problem How to solve the Chinese garbled code read by PHP from MySQL?

How to solve the Chinese garbled code read by PHP from MySQL?

Jul 16, 2020 pm 02:43 PM
mysql php Chinese garbled

Solution: 1. Use to set UTF-8 encoding in the web page file; 2. Set UTF-8 encoding when creating a new database; 3. When connecting to the database with PHP, use "mysql_query("set names 'utf8'");"Set the character set of the data to utf-8.

How to solve the Chinese garbled code read by PHP from MySQL?

MySQL's support for Chinese is still very limited, especially for novices. Whenever there is a problem with garbled characters, it will be a headache.

Garbled code problem:

Using PHPmyAdmin to operate the MySQL database Chinese characters are displayed normally, but when using the PHP web page to display MySQL data, all Chinese characters become ?Number.

Symptoms: It is normal to input Chinese characters using PHPmyAdmin, but when the PHP web page displays MySQL data, the Chinese characters become ? signs, and there are as many ? signs as there are Chinese characters.

Reason: There is no code in the PHP web page to tell MySQL what character set to use to output Chinese characters.

Solution:

1. Set encoding for web page file head

<meta charset="UTF-8">
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2. Use utf-8 encoding when saving PHP pages. You can use Notepad or convertz802 to convert the file

3. When creating a new database in MYSQL, select UTF-8 encoding for the database, and the character set is set to utf-8_unicode_ci (Unicode (multi-language), size-insensitive Write),

The collation of the table in the library is set to utf-8_general_ci

The collation of each field in the table is set to utf-8_general_ci

4. When connecting to the database in PHP, that is, add

//设置数据的字符集utf-8
mysql_query("set names &#39;utf8&#39;");
mysql_query("set character_set_client=utf8");
mysql_query("set character_set_results=utf8");
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after mysql_connect(). Note that it is utf8, not utf-8.

If your web page encoding is gb2312, that is SET NAMES GB2312. However, the editor strongly recommends that web page encoding, MySQL data table character set, and PHPmyAdmin all use UTF-8.

The above four points can achieve utf-8 encoding for the entire site, and there will be no Chinese garbled characters in the database.

Expansion:

Garbled code problem: An error occurred when entering data using PHPmyAdmin, and the input is not allowed or garbled codes appear

Solution Method: This is a setup issue. Please install the latest version of PHPmyAdmin or Appserv, open PHPmyAdmin, MySQL character set: UTF-8 Unicode (utf8); MySQL connection proofreading should be utf8_unicode_ci; when creating a new database, please also select utf8_unicode_ci in the finishing column.

It is also best to use utf-8 for the web page character set. UTF-8 is an international standard encoding and a trend.

Related recommendations: PHP tutorial

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