php程序如何把中文字符转换为拼音(7)

                return 'Y';

            } elseif ($asc >= 212209) {

                return 'Z';

            } else {

                return '-';

            }

        }

    }

    /**

     * 拆分字符串为数组

     * @param $str 字符串

     * @param $charset 编码

     */

    public function mbStringtoArray($str,$charset) {

        $strlen=mb_strlen($str);

        while($strlen){

            $array[]=mb_substr($str,0,1,$charset);

            $str=mb_substr($str,1,$strlen,$charset);

            $strlen=mb_strlen($str);

        }

        return $array;

    }

    public function getInitials($str,$charset){

        $initials="";

        foreach($this->mbStringtoArray($str,$charset)as $char){

            $initials.=$this->getInitial($char,$charset);

        }

        return $initials;

    }

}

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