php - JSONKit - 将 JSON 字符串解析为 PHP 到 MYSQL 数据库

Question

在我的数据库中，我有以下架构:

答案:

answerId(PK) auto_inc
answer
questionId

我将以下 JSON 字符串传递到我的 php 文件:

[{"answer":"bnk","questionId":"1"},{"answer":"1","questionId":"2"},{"answer":"b n","questionId":"3"},{"answer":"3","questionId":"4"},{"answer":"rgb","questionId":"5"},{"answer":"No","questionId":"6"},{"answer":"0","questionId":"7"},{"answer":"0","questionId":"8"},{"answer":"0","questionId":"9"},{"answer":"0","questionId":"10"},{"answer":"0","questionId":"11"},{"answer":"0","questionId":"12"},{"answer":"0","questionId":"13"},{"answer":"0","questionId":"14"},{"answer":"3","questionId":"18"},{"answer":"nko","questionId":"19"},{"answer":"hhkl","questionId":"15"},{"answer":"2","questionId":"16"},{"answer":"vnlf hugg","questionId":"17"}]

这是通过 $_POST['answers'] 中的发布请求捕获的:

if(isset($_POST['submitanswer'])){
  $dbh = connect();
  $user = $_POST['user'];
  $entry = $_POST['entryId'];
  $answers = $_POST['answers'];
  $answers = json_decode($answers); //decode JSON answers

  //for loop to iterate through answers ans insert new row into database
}

如何迭代答案数组并将新行插入到答案表中？

类似于:

foreach($answers as $row){
   $query = "INSERT INTO Answers (answer, questionId) VALUES ($row['answer'], $row['questionId'])";
   mysql_query($query);
}

Answer 1

如果此代码不适合您，请尝试以下操作:

foreach($answers as $row){
 $query = "INSERT INTO Answers (answer, questionId) VALUES (".$row['answer'].", ".$row['questionId'].")";
 mysql_query($query); 
}

否则，我看不出这里有什么问题。