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関数・クラス解説

IntlChar::enumCharNames

version:PHP 7 (公式)

Enumerate all assigned Unicode characters within a range

公式リファレンス

書式

public static IntlChar::enumCharNames ( mixed $start , mixed $limit , callable $callback [, int $nameChoice = IntlChar::UNICODE_CHAR_NAME ] ) : void

説明

Enumerate all assigned Unicode characters between the start and limit code points (start inclusive, limit exclusive) and call a function for each, passing the code point value and the character name.

For Unicode 1.0 names, only those are enumerated that differ from the modern names.

パラメータ

start

The first code point in the enumeration range.

limit

One more than the last code point in the enumeration range (the first one after the range).

callback

The function that is to be called for each character name. The following three arguments will be passed into it:

int $codepoint - The numeric code point value
int $nameChoice - The same value as the nameChoice parameter below
string $name - The name of the character

nameChoice

Selector for which kind of names to enumerate. Can be any of these constants:

IntlChar::UNICODE_CHAR_NAME (default)
IntlChar::UNICODE_10_CHAR_NAME
IntlChar::EXTENDED_CHAR_NAME
IntlChar::CHAR_NAME_ALIAS
IntlChar::CHAR_NAME_CHOICE_COUNT

返値

値を返しません。

サンプル

例1 Enumerating over a sample range of code points 

IntlChar::enumCharNames(0x2600, 0x2610, function($codepoint, $nameChoice, $name) {
    printf("U+%04x %s\n", $codepoint, $name);
});

 上の例の出力は以下となります。 
U+2600 BLACK SUN WITH RAYS
U+2601 CLOUD
U+2602 UMBRELLA
U+2603 SNOWMAN
U+2604 COMET
U+2605 BLACK STAR
U+2606 WHITE STAR
U+2607 LIGHTNING
U+2608 THUNDERSTORM
U+2609 SUN
U+260a ASCENDING NODE
U+260b DESCENDING NODE
U+260c CONJUNCTION
U+260d OPPOSITION
U+260e BLACK TELEPHONE
U+260f WHITE TELEPHONE