JSONKit - parse JSON String to PHP to MYSQL database

Question

In my database I have the following schema:

Answers:

answerId(PK) auto_inc
answer
questionId

I am passing the following JSON String to my php file:

[{"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"}]

This is captured via a post request in $_POST['answers']:

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
}

How do I iterate through the answers array and insert a new row into my answers table?

Something like:

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

Answer 1

If this code didn't work for you, try this:

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

Otherwise, I can't spot anything wrong here.

Answer 2

I gues you know this but make sure your connection string is good.

Actually this is what I do. Probably a bit much info for you, also I do all that concatenation in the SQL so I can easily comment out fields for testing.

$Link = mysql_connect( $Host , $User , $Password , $DBName);

if (!$Link) {
    die('Could not connect: ' . mysql_error());
}



$sql = "insert into table "
                ."("
                    ."hashfirstName".","
                    ."hashfamilyName".","
                    ."hashemailAddress"
                    .")"
                ."values ("
                    ."'$firstNameHashed'".","
                    ."'$familyNameHashed'".","
                    ."'$emailAddressHashed'"
                    .")";

mysql_select_db($DBName , $Link) or die("Database error in insertdata<br>"."Error #" . mysql_errno() . ": " . mysql_error());



            if(!mysql_query($sql , $Link))
            {
                $errors['sql'] = $sql; 
                $errors['DBName'] = $DBName;
                $errors['Link'] = $Link;
                $errors['status'] = "false"; //There was a problem saving the data;
                echo json_encode($errors);
            }
            else
            {
                $errors['status'] = "true";
                echo json_encode($errors);
            }; // if(!mysql_query( $DBName , $sql , $Link))