Truncate ký tự tiếng nhật

skul169 viết ngày 01/04/2016

/**
* Truncate a string to a certain length if necessary,
* optionally splitting in the middle of a word, and
* appending the $etc string or inserting $etc into the middle.
*
* @param string $string
* @param number $length
* @param string $etc
* @return string
*/
public static function mbTruncate($string, $length = 40, $etc = '…') {
    $string = preg_replace('/(\r\n|\n)/', ' ', $string);
    if ($length == 0) {
        return '';
    }

    if (mb_strlen($string, "UTF-8") > $length) {
        $string = mb_substr($string, 0, $length - 1, "UTF-8");
        return $string . $etc;
    } else {
        return $string;
    }
}