如何使用PHP在數據庫的json數組中插入多行

Question

我想將包含在JSON數組中的一些詳細信息輸入數據庫。
下面給出的是我的源代碼。

這是來自txt文件的數據json數組

{
“ 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 1

您的json似乎是問題。

嘗試這個：

[
  {
    "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

您的JSON錯誤並且兩次相同。 也許您會需要它，但是其中之一

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

而且您無法達到$antennaPort = $data['antennaPort']; 那樣。 你必須這樣稱呼它

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

---

編輯

這樣插入您的數據庫

mysqli_query($con,$sql)

之后，您應該檢查錯誤

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

或者你排成一排

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

Answer 3

假設您的源數據每行包含一個json。 您可以使用以下示例代碼進行迭代插入：

$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));
        }
    }
}