Editing php / mysql table but does not update table
Question
I am trying to edit a mysql table, however when i submit the form, the table does not get updated, and the previous value remains the same. I am not getting any errors at all either...
i have tried running the update query directly in the database, and it works...can someone have a look at my code and see if they can help?
below is my code:
edit.php
<?php include('server.php') ?>
<?php
if(isset($_POST['update']))
{
$responseid = $_POST['responseid'];
$response=$_POST['response'];
{
//updating the table
$result = $conn->prepare ("UPDATE response SET response= '$response' WHERE responseid=$responseid");
header("Location: results.php");
}
}
?>
<?php
//getting id from url
$responseid = $_GET['id'];
//selecting data associated with this particular id
$result = $conn->prepare("SELECT * FROM response WHERE responseid=$responseid");
while ($response = $result->fetch())
{
$response = $res['response'];
$student_id = $res['student_id'];
}
?>
<html>
<head>
<title>Edit Data</title>
</head>
<body>
<form name="form1" method="post" action="edit.php">
<table border="0">
<tr>
<td>response</td>
<td><input type='text' name='date' value="<?php echo $response;?>"</td>
</tr>
<tr>
<td><input type="hidden" name="id" value=<?php echo $_GET['id'];?>></td>
<td><input type="submit" name="update" value="Update"></td>
</tr>
</table>
</form>
</body>
</html>
results.php
<div id="table1" class="table1">
<?php
if(isset($_POST["submit"]))
{
$searchTerm=$_POST['search'];
$stmt = $conn->prepare(" SELECT question.description AS question, answer.description AS answer, discipline.name AS name, response.responseid AS responseid, response.response AS response, response.student_id AS student_id, response.Date_Time AS Date
FROM response
INNER JOIN answer ON response.question_id = answer.answerid
INNER JOIN question ON response.question_id = question.qid
INNER JOIN discipline ON response.discipline_id = discipline.disciplineid WHERE Date_Time LIKE :searchTerm");
$stmt->bindValue(':searchTerm','%'.$searchTerm.'%');
$stmt->execute();
$result=0;
/*
The above code is a query which selects attributes according to the search term
*/
echo "<table> <tr><th>Discipline</th><th>Question</th><th>Student ID</th><th>Response</th><th>Date & Time</th><th>Answer</th><th>Final Marks</th></tr>";
while ($response = $stmt->fetch()) /* This is a While loop which iterates each row */
{
echo " <tr><td>".$response["name"]."</td><td>".$response["question"]."</td><td>".$response["student_id"]."</td><td>".$response["response"]."</td><td>".$response["Date"]."</td><td><input type='text' name='date' value=". $response["answer"]."></td><td><a href=\"edit.php?id=$response[responseid]\">Edit</a></td></tr> ";
$result++;
}
} /* This bit of code closes the connection with the database */
?>
</div>
1 answers
solution1
1 ACCPTED 2018-02-07 12:42:44
Updating using prepared statements (similar to the way your doing it in the select in the second listing)...
//updating the table
$result = $conn->prepare ("UPDATE response
SET response= :response
WHERE responseid=:responseid");
$result->bindValue(':response',$response);
$result->bindValue(':responseid', $responseid);
$result->execute();
Also check the contents of $_POST as I think you have the field names wrong (think they were 'date' and 'id')...
<form name="form1" method="post" action="edit.php">
<table border="0">
<tr>
<td>response</td>
<td><input type='text' name='response' value="<?php echo $response;?>"</td>
</tr>
<tr>
<td><input type="hidden" name="responseid" value=<?php echo $_GET['id'];?>></td>
<td><input type="submit" name="update" value="Update"></td>
</tr>
</table>
</form>
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