A brief analysis of the causes and solutions of garbled characters in PHP5.6

With the rapid development of the Internet, PHP has become the most popular server-side scripting language. In PHP5.6, processing Chinese character sets has also become more convenient. However, some developers may encounter garbled code problems. This article will introduce the causes and solutions of garbled characters in PHP5.6.

1.Cause

The appearance of garbled characters is caused by character set mismatch or character set conversion. The most common reason is the use of different encoding methods in different character set environments. In addition, when we use PHP to operate the database, if the database character set and the Web server character set are inconsistent, garbled characters will also appear.

2. Solution

2.1 Modify the php.ini file

Find the php.ini file in the PHP installation directory and use a text editor Open. Find the line default_charset and modify it to default_charset="utf-8". Doing this will set PHP's default character set to UTF-8, which can solve most garbled characters. Then restart the web server.

2.2 Set HTTP header information

Add the following code in the PHP code:

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

This will add the "Content-Type" information in the HTTP header and set the characters Set to UTF-8.

2.3 Database character set setting

Set the database character set to UTF-8, which can be achieved by using the following SQL statement:

SET NAMES utf8;

Change "utf8" to yours The character set of the database.

2.4 HTML file character set setting

For HTML files, you can add the following code to the file header:

This will set the character set of the HTML file to UTF-8 . If you are using a template engine, you may need to add the following code to the template file:

This will set the HTTP header before outputting the HTML document to ensure the correct character set.

3. Summary

PHP5.6 is a very powerful and easy-to-use programming language, but due to problems with character sets, problems may still occur Garbled characters. This article introduces how to solve the problem of garbled characters in PHP5.6 and proposes some effective solutions. I believe this article will be helpful to developers using PHP5.6.

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