How to solve Chinese garbled characters when adding database in php

With the development of the Internet, the application of databases is becoming more and more widespread. PHP is a popular language used to develop dynamic websites, which often requires storing data in a database. However, when using PHP to add Chinese characters, the problem of Chinese garbled characters often occurs. In this article, we will discuss the causes of the Chinese garbled problem of adding database in PHP and how to solve this problem.

1. Causes of Chinese garbled characters

1. Database encoding setting error

In databases such as MySQL, the default encoding is Latin1 encoding, and its character range is relatively Smaller, does not support Chinese characters. If the database encoding setting is wrong, for example, if the encoding is set to Latin1 encoding, then when we add Chinese characters to the database, garbled characters will appear.

2.PHP code encoding

In the PHP code, if the encoding is not uniformly set to UTF-8, then when we add Chinese characters to the database, garbled characters will appear. Because PHP uses ISO-8859-1 encoding by default, we need to change it to UTF-8 encoding in the code.

3. Browser encoding

If the encoding is set to UTF-8 in our code, but the browser encoding is set to GBK, then when we add Chinese characters to the database , garbled characters will appear.

2. How to solve the problem of Chinese garbled characters

1. Check the database encoding

We need to check whether the database encoding is correct. If the database encoding setting is wrong, we need to change it. Encoded to UTF-8.

You can use the following command to view the database encoding:

show variables like 'character%';

If the database encoding is not UTF8, you can use the following command to modify the database encoding:

ALTER DATABASE database_name CHARACTER SET utf8 COLLATE utf8_general_ci;

2. Modify the PHP code encoding

We need to set the encoding to UTF-8 in the PHP code For encoding, you can use the following code:

header('Content-Type:text/html;charset=utf-8');

3. Set the browser encoding

We need to set the encoding in the HTML header as follows:

If you are using phpMyAdmin, you can also set the encoding in phpMyAdmin Unify the encoding to UTF-8 in the settings.

Summary:

PHP adding Chinese garbled characters to the database is a common problem, and there are many reasons for it. We need to check the three aspects of database encoding, PHP code encoding and browser encoding, and make corresponding adjustments and corrections. Only in this way can we effectively solve the problem of Chinese garbled characters added to the database by PHP and make our website run more stable and efficient.

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