How to solve Chinese garbled characters when converting php16 to string

php16 hexadecimal to string Chinese garbled solution: 1. Use the hex2bin function to convert hexadecimal to a string; 2. Use the mb_internal_encoding function to set the character encoding; 3. Use the urlencode function to convert the string In the form of URL encoding, use the urldecode function to convert the URL encoding back to a string; 4. Use the iconv function to convert characters from one encoding to another encoding.

The operating environment of this tutorial: windows10 system, php8.1.3 version, DELL G3 computer.

PHP is a widely used programming language that plays an important role in web development. In PHP, we often encounter the need to convert hexadecimal to string. However, when it comes to Chinese characters, sometimes garbled characters appear. In this article, we will explore how to solve the Chinese garbled problem in PHP.

First of all, we need to understand how Chinese characters are encoded in the computer. Common encoding methods include UTF-8, GBK, ISO-8859-1, etc. Among them, UTF-8 is a widely used encoding method that supports characters worldwide. In PHP, we usually use UTF-8 encoding to handle the conversion of Chinese characters.

Next, we will introduce some methods that can solve the problem of Chinese garbled characters.

1. Convert hexadecimal to string in PHP:

In PHP, we can use the hex2bin function to convert hexadecimal to string. For example:

$hex="e4b8ade59bbd";
$string=hex2bin($hex);
echo$string;

This will output "Chinese" and convert the hexadecimal "e4b8ade59bbd" into a string.

2. Set character encoding:

In PHP, we can use the mb_internal_encoding function to set the character encoding. For example, we can set the encoding to UTF-8:

mb_internal_encoding("UTF-8");

This will ensure that Chinese characters are converted in the correct encoding.

3. Use the urlencode and urldecode functions:

In some cases, we may need to convert Chinese characters into URL-encoded form for processing in the URL transmission. In PHP, we can use the urlencode function to convert a string to URL-encoded form and the urldecode function to convert the URL encoding back to a string.

$str="中文";
$url=urlencode($str);
echo$url;//输出"%E4%B8%AD%E6%96%87"
$decoded_str=urldecode($url);
echo$decoded_str;//输出"中文"

This will ensure the correct transmission of Chinese characters in the URL.

4. Use the iconv function:

In PHP, we can use the iconv function to convert characters from one encoding to another. For example, we can convert a GBK encoded string to UTF-8 encoding.

$str="中文";
$utf8_str=iconv("GBK","UTF-8",$str);
echo$utf8_str;//输出"中文"

This will ensure that Chinese characters are converted in the correct encoding.

To sum up, the methods to solve the problem of Chinese garbled characters in PHP include using the hex2bin function to convert hexadecimal to string, setting the correct character encoding, using the urlencode and urldecode functions to encode and decode the URL, and using the iconv function. Transcoding. By using these methods correctly, we can ensure the correct conversion and display of Chinese characters in PHP.

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