Php/docs/intlchar.charage

• PHP Manual
• IntlChar
• Get the "age" of the code point

IntlChar::charAge

(PHP 7)

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

说明

public static IntlChar::charAge ( mixed $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.

参数

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}")

返回值

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

范例

Example #1 Testing different code points

<?phpvar_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)
}

参见

• IntlChar::getUnicodeVersion() - Get the Unicode version
• IntlChar::getIntPropertyMinValue() - Get the min value for a Unicode property
• IntlChar::getIntPropertyValue() - Get the value for a Unicode property for a code point