PHP solve json

solution

1 Use the urlencode and urldecode methods to bypass the process of transcoding to unicode

    header('content-type:application/json;charset=utf-8');
    $arr = array ('lang'=>urlencode('我是中文'));
    echo urldecode(json_encode($arr));

2 In PHP5.4, json_encode has a new option: JSON_UNESCAPED_UNICODE, hence the name, which means that json_encode does not require unicode encoding.

    header('content-type:application/json;charset=utf-8');
    $data = ['lang'=> '我是中文'];
    echo json_encode($data,JSON_UNESCAPED_UNICODE);