PHP接收JSON POST數據

Question

我試圖從外部系統接收JSON數據，然后處理並保存到我的本地數據庫。 當事件觸發時，外部系統將下面的數據發送到我的系統。

外部系統日志顯示：

Log 1:   Date/Time: 16 August 2017 11:54:44 AM
Status: Failure
Server: Apache https://blahblah.com/abc/data.php
Status Code:    OK
Event Content:  [{"field":"_USERNAME","value":""},
{"field":"_PASSWORD","value":""},
{"field":"_TOKEN","value":""},
{"field":"_CODE","value":"L77H4XD6ZA"},
{"field":"_SUBMITTEDDATE","value":"2017.08.16.01.54"},
{"field":"_SUBMITTEDDATEEXT","value":"2017.08.16.01.54.39.610"},
{"field":"_EDITEDDATE","value":"2017.08.16.01.55"},
{"field":"_SEQUENTIALID","value":"39a1cad9-2582-e711-9477-06c7814985cc"},
{"field":"_COMPLETETYPE","value":"Complete"},
{"field":"_LANGUAGE","value":"en"},
{"field":"_TOTALTIME","value":"12.59"},{"field":"_LINKURL","value":"http%3a%2f%2fsurv.blah.com%2ftest3%3fusr%3dL77H4XD6ZA"},
{"field":"GENDER","value":"TEXT%3aFemale%3bVALUE%3a2"},
{"field":"AGE","value":"TEXT%3a40%2b-%2b44%3bVALUE%3a6"},
{"field":"STATE","value":"TEXT%3aVIC%3bVALUE%3a2"},
{"field":"END_CHC","value":"TEXT%3aComplete%3bVALUE%3a2"},
{"field":"D2H","value":""},
{"field":"D2V","value":""},
{"field":"PCODE","value":""},
{"field":"PSTATE","value":""},
{"field":"PREGION","value":""},
{"field":"STATEREGION","value":""},
{"field":"TEST1","value":""}]

所以，在我的php文件（ https://blahblah.com/abc/data.php ）中我有

$json = file_get_contents('php://input');
$obj = json_decode($json);

我一直在嘗試foreach（）循環來嘗試獲取每個字段和值，然后放入數據庫，就像

foreach($obj as $key => $value)
{
    $qry = $conn->prepare('INSERT INTO `key_value`(`db_id`, `rkey`, `rvalue`) VALUES (NULL,$key,$value)');
    $qry->execute();
}

但它不起作用，我要么得到關於foreach循環的錯誤，要么我只是使用echoing或var_dumping，當我使用Postman或ARC Chrome API測試應用程序時，我在響應中得到NULL。

所以，我懷疑我是如何做到這一點的完全錯誤的軌道。

任何人都可以幫助指導我嗎？

編輯：我已經看過使用PHP和其他幾個接收JSON POST ，但工作答案不明確。

Answer 1

你在這里遇到了一些問題。 首先，您需要將true作為第二個參數傳遞給json_decode ，以便獲取關聯數組而不是stdClass。 然后，當您迭代結果時，您不需要$ key，$ value是結果數組中的每個條目（每個“行”）。 嘗試運行它來查看發生了什么：

<?php
$json = <<<JSON
[{"field":"_USERNAME","value":""},
{"field":"_PASSWORD","value":""},
{"field":"_TOKEN","value":""},
{"field":"_CODE","value":"L77H4XD6ZA"},
{"field":"_SUBMITTEDDATE","value":"2017.08.16.01.54"},
{"field":"_SUBMITTEDDATEEXT","value":"2017.08.16.01.54.39.610"},
{"field":"_EDITEDDATE","value":"2017.08.16.01.55"},
{"field":"_SEQUENTIALID","value":"39a1cad9-2582-e711-9477-06c7814985cc"},
{"field":"_COMPLETETYPE","value":"Complete"},
{"field":"_LANGUAGE","value":"en"},
{"field":"_TOTALTIME","value":"12.59"},{"field":"_LINKURL","value":"http%3a%2f%2fsurv.blah.com%2ftest3%3fusr%3dL77H4XD6ZA"},
{"field":"GENDER","value":"TEXT%3aFemale%3bVALUE%3a2"},
{"field":"AGE","value":"TEXT%3a40%2b-%2b44%3bVALUE%3a6"},
{"field":"STATE","value":"TEXT%3aVIC%3bVALUE%3a2"},
{"field":"END_CHC","value":"TEXT%3aComplete%3bVALUE%3a2"},
{"field":"D2H","value":""},
{"field":"D2V","value":""},
{"field":"PCODE","value":""},
{"field":"PSTATE","value":""},
{"field":"PREGION","value":""},
{"field":"STATEREGION","value":""},
{"field":"TEST1","value":""}]
JSON;

$obj = json_decode($json, true);

foreach($obj as $currTuple)
{
    echo $currTuple['field'].':'.urldecode($currTuple['value'])."\n";
}

還有一些結果是url編碼的，所以你可能想要在持久化之前解碼它。