How Can I Create a PHP String Containing a Single Unicode Character Using Its Numeric Value?

Representing Unicode Characters in PHP Strings

In PHP, Unicode characters can be represented in a string using various methods. This article focuses on creating a string with a single Unicode character based on its "Unicode numeric value."

PHP 7.0.0 and Unicode Codepoint Escape

PHP 7.0.0 introduced the "Unicode codepoint escape" syntax, which simplifies the process of creating strings with Unicode characters. This escape sequence uses the format "u{" followed by the hexadecimal Unicode numeric value.

For example, to create a string with a single Unicode character whose "Unicode numeric value" is 1000 in hexadecimal (4096 in decimal), you can use the following code:

$unicodeChar = "\u{1000}";

This code outputs the following string:

 stdClass(1) {
  [0] => ⁌
}

where "⁌" represents the Unicode character with the numeric value 1000.

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