数据库 按照昵称排序

 &$v) {
            $v['chart'] = self::getFirstChart( $v[$filed] );
        }

        $data=[];

        foreach ($list as $k=>$value){

            if ( empty( $data[ $value['chart'] ] ) ) {

                $data[ $value['chart'] ]=[];
            }
            $data[ $value['chart'] ][]=$value;
        }

        ksort($data);
        return $data;
    }

    /**
     * 将数组按字母A-Z排序
     * @return [type] [description]
     */
    public static function chartSortJson($list,$filed){

        foreach ($list as $k => &$v) {
            $v['chart'] = self::getFirstChart( $v[$filed] );
        }

        $data=[];
        foreach ($list as $k => $v) {
            if ( empty( $data[ $v['chart'] ] ) ) {
                $data[ $v['chart'] ]=[];
            }
            $data[ $v['chart'] ][]=$v;
        }
        ksort($data);
        return $data;
    }

    /**
     * 返回取汉字的第一个字的首字母
     * @param  [type] $str [string]
     * @return [type]      [strind]
     */
    public static function getFirstChart($str){

        if( empty($str) ){
            return '';
        }

        $char=ord($str[0]);

        if( $char >= ord('A') && $char <= ord('z') ){
            return strtoupper($str[0]);
        }

        $s1=iconv('UTF-8','gb2312',$str);
        $s2=iconv('gb2312','UTF-8',$s1);
        $s=$s2==$str?$s1:$str;
        $asc=ord($s{0})*256+ord($s{1})-65536;
        if($asc>=-20319&&$asc<=-20284) return 'A';
        if($asc>=-20283&&$asc<=-19776) return 'B';
        if($asc>=-19775&&$asc<=-19219) return 'C';
        if($asc>=-19218&&$asc<=-18711) return 'D';
        if($asc>=-18710&&$asc<=-18527) return 'E';
        if($asc>=-18526&&$asc<=-18240) return 'F';
        if($asc>=-18239&&$asc<=-17923) return 'G';
        if($asc>=-17922&&$asc<=-17418) return 'H';
        if($asc>=-17417&&$asc<=-16475) return 'J';
        if($asc>=-16474&&$asc<=-16213) return 'K';
        if($asc>=-16212&&$asc<=-15641) return 'L';
        if($asc>=-15640&&$asc<=-15166) return 'M';
        if($asc>=-15165&&$asc<=-14923) return 'N';
        if($asc>=-14922&&$asc<=-14915) return 'O';
        if($asc>=-14914&&$asc<=-14631) return 'P';
        if($asc>=-14630&&$asc<=-14150) return 'Q';
        if($asc>=-14149&&$asc<=-14091) return 'R';
        if($asc>=-14090&&$asc<=-13319) return 'S';
        if($asc>=-13318&&$asc<=-12839) return 'T';
        if($asc>=-12838&&$asc<=-12557) return 'W';
        if($asc>=-12556&&$asc<=-11848) return 'X';
        if($asc>=-11847&&$asc<=-11056) return 'Y';
        if($asc>=-11055&&$asc<=-10247) return 'Z';
        return null;
    }

    /* 按照前端要求排序*/
    public static function MailJson($list)
    {
        $arr = [];

        foreach ($list as $key=>$value){

            if(empty($arr[$key])){
                $arr[$key]['key'] = $key;
                $arr[$key]['data'] = $value;
            }

            $arr[$key]['data'] = $value;
        }

        return array_values($arr);

    }

}