PHP 7.1.21 Released

IntlChar::foldCase

(PHP 7)

IntlChar::foldCasePerform case folding on a code point

説明

public static mixed IntlChar::foldCase ( mixed $codepoint [, int $options = IntlChar::FOLD_CASE_DEFAULT ] )

The given character is mapped to its case folding equivalent; if the character has no case folding equivalent, the character itself is returned.

パラメータ

codepoint

コードポイントを表す integer 型の値 (例: U+2603 SNOWMAN を表す 0x2603)、あるいは UTF-8 文字列としてエンコードされた文字 (例: "\u{2603}")。

options

Either IntlChar::FOLD_CASE_DEFAULT (default) or IntlChar::FOLD_CASE_EXCLUDE_SPECIAL_I.

返り値

Returns the Simple_Case_Folding of the code point, if any; otherwise the code point itself.

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