IntlChar::charAge()

版本：php7

(PHP 7)

Get the "age" of the code point

说明

publicstaticIntlChar::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 integer codepoint value(e.g.0x2603forU+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, version1.3.31.2would be represented as[1, 3, 31, 2].

范例

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)
}

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