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HomeBackend DevelopmentPHP ProblemHow to convert UTF-16 encoding to Chinese in php

UTF-16 is a Unicode character encoding method that supports multiple languages, including Chinese. In PHP, we can use some functions to convert UTF-16 encoding to Chinese characters.

1. UTF-16 encoding

UTF-16 is a 16-bit Unicode character encoding method, which can represent global language character sets, including English, Chinese, Japanese, etc. wait. UTF-16 encoding uses one word (16 bits) to represent a character.

UTF-16 encoded byte sequence is divided into big-endian byte order and little-endian byte order. Big-endian byte order means the high-order byte first, and little-endian byte order means the low-order byte first. When using UTF-16 encoding, we need to specify which byte order to use.

2. Convert UTF-16 encoding to Chinese

In PHP, we can use the iconv and mb_convert_encoding functions to convert UTF-16 encoding to Chinese.

  1. iconv function

iconv function can be used to convert character sets of strings. Its syntax is as follows:

string iconv ( string $in_charset , string $out_charset , string $str )

Among them, $in_charset represents the character set of the original string, $out_charset represents the character set of the target string, and $str represents the string that needs to be converted.

For example, we can use the following code to convert a UTF-16 encoded string to a Chinese string:

$str = "0055006A8F6CFF";
$str_utf16 = hex2bin($str);
$str_chinese = iconv("UTF-16LE", "UTF-8", $str_utf16);
echo $str_chinese;

In the above code, we first use the hex2bin function to convert the hexadecimal string Convert to a UTF-16 encoded string, and then use the iconv function to convert the UTF-16 encoded string to a Chinese string. In the iconv function, we specify that the character set of the original string is UTF-16LE (little-endian byte order), and the character set of the target string is UTF-8.

  1. mb_convert_encoding function

The mb_convert_encoding function can also be used for character set conversion of strings. Its syntax is as follows:

string mb_convert_encoding ( string $str , string $to_encoding [, mixed $from_encoding = mb_internal_encoding() ] )

Among them, $str represents the string that needs to be converted, $to_encoding represents the character set of the target string, $from_encoding represents the characters of the original string Set, defaults to the return value of the mb_internal_encoding() function.

For example, we can use the following code to convert a UTF-16 encoded string to a Chinese string:

$str = "0055006A8F6CFF";
$str_utf16 = hex2bin($str);
$str_chinese = mb_convert_encoding($str_utf16, 'UTF-8', 'UTF-16LE');
echo $str_chinese;

In the above code, we first use the hex2bin function to convert the hexadecimal string Convert to a UTF-16 encoded string, and then use the mb_convert_encoding function to convert the UTF-16 encoded string to a Chinese string. In the mb_convert_encoding function, we specify that the character set of the original string is UTF-16LE (little endian byte order), and the character set of the target string is UTF-8.

3. Conclusion

UTF-16 encoding is an encoding method that supports multi-language character sets, including Chinese character sets. In PHP, we can use iconv and mb_convert_encoding functions to convert UTF-16 encoded strings to Chinese strings. When using these functions, we need to specify the character set of the original string and the character set of the target string.

The above is the detailed content of How to convert UTF-16 encoding to Chinese in php. For more information, please follow other related articles on the PHP Chinese website!

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