check full width katakana

    0

    6

    jvit
    JVIT PHP

    echo isFullWidthKatakana('アイウエオ');

    => true

    Shortcut: ja.fullWidthKatakana

    /**
    * fullwidth katakana
    *
    * @return bool
    */
    function isFullWidthKatakana($word)
    {
      return preg_match('/^([ァ-ン]|ー)+$/', $word);
    }
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