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(PHP 7)
IntlChar::charAge — Get the "age" of the code point
$codepoint
)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.
codepoint
The integer codepoint value (e.g. 0x2603 for U+2603 SNOWMAN), or the character encoded as a UTF-8 string (e.g. "\u{2603}")
The Unicode version number, as an array . For example, version 1.3.31.2 would be represented as [1, 3, 31, 2].
Example #1 Testing different code points
<?php
var_dump ( IntlChar :: charage ( "\u{2603}" ));
var_dump ( IntlChar :: charage ( "\u{1F576}" ));
?>
以上例程会输出:
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) }