How to solve Chinese garbled characters in php program

1. Background

In the process of PHP programming, we often encounter situations where Chinese content is output as garbled characters. At this time, you need to find the problem and solve it.

2. Cause of the problem

1. Editor causes

The editor may convert the Chinese encoding to non-UTF-8 encoding when saving the file method, resulting in Chinese output being garbled.

2. PHP file header causes

The character set declaration in the PHP file header is inconsistent with the actual character set used, which may also cause Chinese output to be garbled.

3. Database character set causes

When using databases such as MySQL, if the database character set is incorrectly set, the Chinese output will also be garbled.

3. Solution

1. Editor solution

Use a suitable editor, such as Sublime, Notepad, etc., and set the encoding method to UTF- 8. Avoid converting to non-UTF-8 encoding.

2. PHP file header solution

Add the following code in the PHP file header part:

header("Content-type:text/html;charset=utf-8");

This code specifies to set the encoding to UTF before output -8 to prevent Chinese output from being garbled.

3. Database character set solution

Set the character set to UTF-8 when connecting to the database, as follows:

$conn = mysqli_connect("localhost","root","","my_db");
mysqli_query($conn,"SET NAMES utf8");

This code specifies when connecting to the database Set the character set to UTF-8 to avoid Chinese output being garbled.

4. Summary

Chinese garbled characters are one of the more common problems in the PHP programming process. Through reasonable editor use, PHP file header settings and database connection character set settings, this problem can be effectively avoided. This plays a very important role in writing higher quality and more accurate programs.

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