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    IntlChar::charAge

    (PHP 7, PHP 8)

    IntlChar::charAge — Get the "age" of the code point

    Description

    public static IntlChar::charAge(int|string $codepoint): ?array

    Gets the "age" of the code point.

    The "age" is the Unicode version when the code point was first designated (as a non-character or for Private Use) or assigned a character. This can be useful to avoid emitting code points to receiving processes that do not accept newer characters.

    Parameters

    codepoint

    The int codepoint value (e.g. 0x2603 for U+2603 SNOWMAN), or the character encoded as a UTF-8 string (e.g. "\u{2603}")

    Return Values

    The Unicode version number, as an array. For example, version 1.3.31.2 would be represented as [1, 3, 31, 2]. Returns null on failure.

    Examples

    Example #1 Testing different code points

    <?php
    var_dump    (IntlChar::charage("\u{2603}"));
    var_dump(IntlChar::charage("\u{1F576}"));
    ?>

    The above example will output:

    array(4) {
  [0]=>
  int(1)
  [1]=>
  int(1)
  [2]=>
  int(0)
  [3]=>
  int(0)
}
array(4) {
  [0]=>
  int(7)
  [1]=>
  int(0)
  [2]=>
  int(0)
  [3]=>
  int(0)
}

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