# IntlChar::charAge

(PHP 7, PHP 8)

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

### 说明

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.

### 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]`. Returns `null` on failure.

### 示例

示例 #1 Testing different code points

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

以上示例会输出：

    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

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