Question

我想在JSON数组中输入一些包含在数据库中的细节。
以下是我的源代码。

这是我的txt文件中的数据json数组

{
   ＆＃34; reader_name＆＃34;：＆＃34; Biboy Pogi＆＃34;，    ＆＃34; MAC_ADDRESS＆＃34;：＆＃34; 00：16：25：10：7E：85＆＃34 ;,    ＆＃34; tag_reads＆＃34;：[
      {
         ＆＃34; antennaPort＆＃34;：1，          ＆＃34; EPC＆＃34;：＆＃34; 2015031687850100010105B5＆＃34 ;,          ＆＃34; TID＆＃34;：＆＃34; E280110520005A8B952F0886＆＃34 ;,          ＆＃34; isHeartBeat＆＃34;：假       }    ] }

Answer 1

你的json似乎是个问题。

试试这个：

[
  {
    "reader_name": "Biboy Pogi",
    "mac_address": "00:16:25:10:7E:85",
    "tag_reads": [
      {
        "antennaPort": 1,
        "epc": "2015031687850100010105B5",
        "tid": "E280110520005A8B952F0886",
        "isHeartBeat": false
      }
    ]
  },
  {
    "reader_name": "Biboy Pogi",
    "mac_address": "00:16:25:10:7E:85",
    "tag_reads": [
      {
        "antennaPort": 1,
        "epc": "2015031687850100010105B5",
        "tid": "E280110520005A8B952F0886",
        "isHeartBeat": false
      }
    ]
  }
]

Answer 2

你JSON错了，两次相同。也许你会这样需要它，但是这一个

{
  "reader_name": "Biboy Pogi",
  "mac_address": "00:16:25:10:7E:85",
  "tag_reads": [
      {
        "antennaPort": 1,
        "epc": "2015031687850100010105B5",
        "tid": "E280110520005A8B952F0886",
        "isHeartBeat": false
      }
  ]
}

你无法以$antennaPort = $data['antennaPort'];的方式到达那里。你必须这样称呼它

$antennaPort = $data['tag_reads']['antennaPort'];
$epc= $data['tag_reads'][0]['epc'];
$tid= $data['tag_reads'][0]['tid'];

修改

像这样插入你的数据库

mysqli_query($con,$sql)

之后，你应该检查错误

if(!mysqli_query($con, $sql))
  die ('Error in query: ' . mysqli_error($con));

或者你排成一行

mysqli_query($con, $sql) or die(mysqli_error());

Answer 3

假设您的数据源是每行一个json。您可以使用以下示例代码执行迭代插入：

$fn = 'debug.txt';
$raw = file_get_contents($fn);

$raw = explode("\r\n", $raw);
foreach($raw as $row){
    //force it to array for single item
    if (substr($row, 0, 1) != '[')
        $row = '[' . $row . ']';

    $data_arr= json_decode($row, true);

    foreach ($data_arr as $data){
        $reader_name = $data['reader_name'];
        $mac_address = $data['mac_address'];
        $antennaPort = $data['tag_reads'][0]['antennaPort'];
        $epc = $data['tag_reads'][0]['epc'];
        $tid = $data['tag_reads'][0]['tid'];

        $sql = "INSERT INTO tags(reader_name, mac_address, antennaPort, epc, tid)
        VALUES('$reader_name', '$mac_address', '$antennaPort', '$epc', '$tid')";

        if(!mysqli_query($con, $sql))
        {
            die('Error : ' . mysqli_error($con));
        }
    }
}

如何使用php

3 个答案:

修改