How to set encoding format using php

In the process of website development, it is very important to set the encoding format. If the encoding format is set incorrectly, the website will be garbled. As a major back-end programming language, PHP also needs to set the encoding format. This article will introduce how to set the encoding format using PHP.

1. Determine the encoding format used by the website

Before setting the encoding format, you need to determine the encoding format of the website. Usually the encoding formats used by the website include UTF-8, GBK, etc., you can View it in the header or source code of the website.

2. Set HTTP header information

In PHP, you can use the header() function to set HTTP header information and thereby set the encoding format. The specific code is as follows:

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

In this example, we set the Content-Type of the web page to "text/html" and the encoding format to "utf-8".

3. Set the PHP script output encoding format

Another way to set the encoding format is to use PHP's mb_internal_encoding() function and mb_http_output() function. These two functions can set the PHP script The output encoding format, the specific code is as follows:

mb_internal_encoding('utf-8');
mb_http_output('utf-8');

In this example, we set the default encoding format of the PHP script to "utf-8", and set the output encoding format to "utf-8" ".

4. Set the encoding format of the database connection

If the website needs to connect to the database, then you also need to set the encoding format of the database connection. Generally speaking, the database connection encoding format should be consistent with the website encoding format.

In PHP, you can use the mysqli_set_charset() function to set the database connection encoding format. The specific code is as follows:

$mysqli = new mysqli('localhost', 'username', 'password', 'database');
$mysqli->set_charset('utf8');

In this example, we connected to a database named "database" Database, and set the connection encoding format to "utf8".

5. Summary

Through the above method, you can effectively set the PHP encoding format to ensure the normal display of the website. It should be noted that when setting the encoding format, you need to fully consider the needs of the website and comply with the standards to achieve the best results.

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