Tips to avoid PHP outputting garbled Chinese characters

Tips to avoid PHP outputting garbled Chinese characters

When programming PHP, you often encounter the situation of outputting Chinese content. However, if you accidentally handle it improperly, it is easy for Chinese characters to be garbled and affect the user experience. Therefore, mastering some skills can effectively prevent PHP from outputting garbled Chinese characters. Some specific code examples will be introduced below to help developers better handle Chinese character output.

1. Set the character encoding to UTF-8

Ensure that the encoding of the PHP file itself is UTF-8. You can add the following comment at the beginning of the code to specify the encoding:

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

This can ensure that the PHP file itself is encoded correctly and avoid garbled characters.

2. Set the database connection encoding to UTF-8

If PHP needs to connect to the database, and the data stored in the database is Chinese, you need to set the encoding when connecting to the database is UTF-8, the sample code is as follows:

$connection = mysqli_connect("localhost", "username", "password", "database");
mysqli_set_charset($connection, "utf8");

This setting can ensure that the Chinese data read from the database will not produce garbled characters.

3. Use header information to set the encoding

Before PHP output, you can use header information to set the output encoding. The sample code is as follows:

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

This ensures that the browser correctly parses Chinese characters and avoids garbled display.

4. Use the mb_convert_encoding function

When outputting Chinese characters, you can use the mb_convert_encoding function to convert the characters into the specified encoding. The sample code is as follows:

 $text = "Chinese content";
$text = mb_convert_encoding($text, "UTF-8", "auto");
echo $text;

This can ensure that the output Chinese characters are encoded correctly and avoid garbled characters.

5. Use the htmlspecialchars function

When outputting HTML content, you can use the htmlspecialchars function to escape the content to avoid special characters affecting the display of Chinese characters. Sample code As follows:

$text = "<p>Chinese content</p>";
echo htmlspecialchars($text);

The above are some specific code examples to avoid PHP outputting garbled Chinese characters. Developers can choose the appropriate method to process Chinese character output according to the actual situation to ensure that the page display is clear and readable. Improve user experience.

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