php将xml数据解析为数组

php如何将获取到的xml解析为数组，这里我们可以使用系统函数，一步步解析即可。比如我们获取到xml数据源：

00000000
请求成功

869071037768299
hy18360914
978300898
0b1d013c50b94ffc987cb769037b91f2
段满天
13
9783

首先将xml通过系统函数simplexml_load_string()将其转化成对象

object(SimpleXMLElement)#29 (3) {
  ["code"]=>
  string(8) "00000000"
  ["msg"]=>
  string(12) "请求成功"
  ["data"]=>
  object(SimpleXMLElement)#30 (8) {
    ["deviceId"]=>
    string(15) "869071037768299"
    ["account"]=>
    string(10) "hy18360914"
    ["roleId"]=>
    string(9) "978300898"
    ["appId"]=>
    string(32) "0b1d013c50b94ffc987cb769037b91f2"
    ["roleName"]=>
    string(9) "段满天"
    ["roleLevel"]=>
    string(2) "13"
    ["serverName"]=>
    string(4) "9783"
    ["total"]=>
    object(SimpleXMLElement)#31 (0) {
    }
  }
}

接着使用json_encode()函数将对象转成json数据：

{"code":"00000000","msg":"\u8bf7\u6c42\u6210\u529f","data":{"deviceId":"869071037768299","account":"hy18360914","roleId":"978300898","appId":"0b1d013c50b94ffc987cb769037b91f2","roleName":"\u6bb5\u6ee1\u5929","roleLevel":"13","serverName":"9783","total":{}}}

最后使用json_decode()函数就获得数据的数组格式了：

array(3) {
  ["code"]=>
  string(8) "00000000"
  ["msg"]=>
  string(12) "请求成功"
  ["data"]=>
  array(8) {
    ["deviceId"]=>
    string(15) "869071037768299"
    ["account"]=>
    string(10) "hy18360914"
    ["roleId"]=>
    string(9) "978300898"
    ["appId"]=>
    string(32) "0b1d013c50b94ffc987cb769037b91f2"
    ["roleName"]=>
    string(9) "段满天"
    ["roleLevel"]=>
    string(2) "13"
    ["serverName"]=>
    string(4) "9783"
    ["total"]=>
    array(0) {
    }
  }
}