How to insert Chinese into php without garbled characters

php is an open source server-side scripting language that is very commonly used in web development. During the development process, we usually need to deal with Chinese characters. How to avoid the problem of Chinese garbled characters is a problem that many beginners need to solve. This article will introduce how to insert Chinese into PHP without garbled characters.

1. Specify the character set

In the PHP code, we can avoid the problem of Chinese garbled characters by specifying the character set. Normally, we use UTF-8 character set for development and encoding. The method of specifying the character set is as follows:

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

This line of code can be placed at the top of the php file, or after the data connection code. It sets the Content-Type attribute in the HTTP header to tell the browser that the web page uses UTF-8 encoding so that Chinese characters can be displayed correctly.

2. Database settings

In PHP development, we usually use databases, such as MySql, etc. For database settings, we also need to pay attention to character set issues. As shown below:

$conn = mysqli_connect($servername, $username, $password, $dbname);
mysqli_set_charset($conn, "utf8");

In the above code, use the mysqli_set_charset function to set the character set of the database to UTF-8 to ensure that the Chinese characters read from the database will not be garbled.

3. HTML meta tag

In addition to setting the character set through PHP code, we can also set the character set through the HTML meta tag, as shown below:

<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />

This line of code can be placed inside the head tag of the HTML document to tell the browser that the webpage uses UTF-8 encoding, thereby ensuring that the Chinese characters in the page are not garbled.

4. Use the urlencode function

When passing parameters, we usually use the GET or POST method to pass the parameters to the server. In the GET request, parameters will be placed in the URL, and the URL can only contain characters in the ASCII character set. If there are Chinese characters, garbled characters will occur. Use the urlencode function to encode Chinese characters to avoid garbled characters. The code example is as follows:

$url = "http://www.example.com/?name=".urlencode("张三")."&age=20";
echo $url;

In the above code, the urlencode function is used to encode the Chinese character "Zhang San", and the generated URL is as follows:

http://www.example.com/?name=%E5%BC%A0%E4%B8%89&age=20

As you can see, the Chinese characters have been is correctly encoded and can be passed in the URL without garbled characters.

5. Pay attention to the article encoding format

When writing PHP files or HTML files, we need to pay attention to the encoding format of the file and ensure that the encoding format is consistent with the header statement. For example, if UTF-8 encoding is used, the file needs to be saved in UTF-8 format. If other encoding formats are used, Chinese garbled characters may occur.

To sum up, by specifying the character set, setting up the database, using HTML meta tags, using the urlencode function and paying attention to the article encoding format, you can effectively avoid the problem of Chinese garbled characters in PHP code. In actual development, we need to always pay attention to these issues to ensure that our code can correctly handle Chinese characters and improve our code quality and development efficiency.

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