mb_chr

Function name: mb_chr()

Function description: The mb_chr() function returns the characters that specify the Unicode code point.

Applicable version: PHP 7.2.0 and above

Usage: mb_chr(int $codepoint [, string $encoding = mb_internal_encoding()]): string

parameter:

• $codepoint: To get the Unicode code point value of the character.
• $encoding (optional): character encoding, default is mb_internal_encoding().

Return value: Returns a string containing the specified Unicode code point characters.

Example:

 // 示例1：使用默认编码获取Unicode 码点为8364 的字符echo mb_chr(8364); // 输出：€ // 示例2：使用UTF-8 编码获取Unicode 码点为128640 的字符echo mb_chr(128640, 'UTF-8'); // 输出：??

Notes:

1. This function requires support for the mbstring extension, ensuring that the extension is enabled.
2. If no encoding is specified, the default encoding returned by the mb_internal_encoding() function is used.
3. Make sure that the specified encoding can correctly parse the specified Unicode code points, otherwise you may get incorrect results.
4. If the specified Unicode code point is outside the selected encoding range, characters may not be displayed correctly.