从redis读取的数据，这个数据是json发现nickname是乱码的

$data：

Array
(
    [0] => {"userid":270,"nickname":"erjiankuan"}
    [1] => {"userid":114,"nickname":"��ͨ���"}
    [2] => {"userid":250,"nickname":"������"}
    [3] => {"userid":209,"nickname":"dnkldnuin"}
    [4] => {"userid":229,"nickname":"�½����"}
    [5] => {"userid":115,"nickname":"��������"}
    [6] => {"userid":237,"nickname":"÷԰���"}
    [7] => {"userid":234,"nickname":"����876wxy"}
    [8] => {"userid":270,"nickname":"�����"}
    [9] => {"userid":228,"nickname":"111111mm"}
)

转码：

foreach($data as $k=>$v){
    $data[$k] = json_decode(iconv('gbk','utf-8',$v),true);
}

Array
(
    [0] => Array
        (
            [userid] => 270
            [nickname] => erjiankuan
        )

    [1] => Array
        (
            [userid] => 114
            [nickname] => 亨通光电
        )

    [2] => Array
        (
            [userid] => 250
            [nickname] => 锁俊炎
        )

    [3] => Array
        (
            [userid] => 209
            [nickname] => dnkldnuin
        )

    [4] => Array
        (
            [userid] => 229
            [nickname] => 新疆天池
        )

    [5] => Array
        (
            [userid] => 115
            [nickname] => 海上世界
        )

    [6] => Array
        (
            [userid] => 237
            [nickname] => 梅园五村
        )

    [7] => Array
        (
            [userid] => 234
            [nickname] => 星尚876wxy
        )

    [8] => Array
        (
            [userid] => 270
            [nickname] => 撒振飞
        )

    [9] => Array
        (
            [userid] => 228
            [nickname] => 111111mm
        )

)

成功！！！