Can't use $_GET['order_id'];

Question

0.00/5 (No votes)

See more:

Hi I really need some help with this. I'm trying to create a table that will send an email when you press a button, and then after that deletes the record. to delete one record you need to specify the id (or in this case order id) in the query. but I always get the error:

Notice: Undefined index: order_id

how do I fix this ??
this is my full 3 scripts

table:

<?php 
include "navbar.php";
include "config.php";
?> 
<style>
    .container {
    font-family: Arial, Helvetica, sans-serif;
    font-size: 20px;
  }
    tr:first-of-type th:first-child 
    {
        border-top-left-radius: 10px; 
  
    }
  tr:first-of-type th:last-child{
    border-top-right-radius: 10px; 

  }
  
  /* tbody td:first-of-type th:last-child{
    border-bottom-right-radius: 10px;
  }
  tbody td:first-of-type th:last-child{
    border-bottom-left-radius: 10px;
  } */

</style>

<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.2/css/all.min.css"/>
<div class="container">
<div class="table-responsive">
<table class="table table-dark table-hover" style=" width: 50%;   margin-left: auto; margin-right: auto; margin-top: 5%;">
  <thead>
    <tr>
      <th scope="col">order_id</th>
      <th scope="col">klant_id</th>
      <th scope="col">broodjes_ID</th>
      <th scope="col">klantnaam</th>
      <th scope="col">klant email</th>
      <th scope="col">Bevestigen?</th>
      <th scope="col">Afwijzen</th>
    </tr>
  </thead>
  <tbody>
  <?php
   $sql = "SELECT * FROM orders";
   $stmt = $conn->prepare($sql); 
   $stmt->execute();
   $result = $conn -> query($sql);
   $result = $stmt->get_result(); // get the mysqli result

      while($row = $result-> fetch_assoc()): ?>
      <tr>
        <td class="order_id"><?php echo $row["order_id"];?></td>
        <td class="klant_id"><?php echo $row["klant_id"];?></td>
        <!--Datum is eigenlijk meer voor de klant wanneer het kan worden opgehaald daar moet ene sorrt rekensom mee worden gemaakt-->
        <td class="broodjes_ID"><?php echo $row["broodjes_ID"];?></td>
        <td class="klantnaam"><?php echo $row["klantnaam"];?></td>
        <td class="klantemail"><?php echo $row["klantemail"];?></td>
        <td><a href="mail/bevestigordermail.php?id="<?php echo $row['order_id']; ?>  > 
            <input type="hidden" name="name" value="<?php echo $row['order_id']; ?>">
            <button type="button" name="bevestigen" class="btn btn-success" >class="fas fa-check" style="color: rgba(255, 255, 255, 1)"></button>
        </td>
        <td><a href="mail/afwijzingordermail.php?id="<?php echo $row['order_id']; ?>> <!-- het moest if zijn omdat je bij delete.php? id hebt gezet-->
            <input type="hidden" name="name" value="<?php echo $row['order_id']; ?>">
            <button type="button" name="delete" class="btn btn-danger">class="fas fa-times" style="color: rgba(255, 255, 255, 1)"></button>
        </td>
      </tr>
      <?php endwhile; ?>
 </tbody>
</table>
</div>
</div>

example of a mail:

<?php include "mailen.php"; 
include "../config.php";?>
<!-- moet ik heir prepared statements gebruiken?-->
<html>
   <!-- sending a mail -->
   <body>
      
      <?php
      //moet misschien nog in prepared statements maar eerst maar voor zorgen dat dit werkt
      //tijd plus 1 uur
         $newtime = date('H:i', time() + 3600);
         echo $newtime;
         $sql = "SELECT * FROM orders";
  
         $stmt = $conn->prepare($sql); 
         $stmt->execute();
         $result = $conn -> query($sql);
         $result = $stmt->get_result();
       
             while($row = $result-> fetch_assoc()){
                  $email = $row['klantemail'];
                  $klant = $row['klantnaam'];
                  $onderwerp = "Bestelling";
                  $bericht = "Geachte $klant, uw bestelling is bevestigd! U kunt uw order ophalen om $newtime";
                  mailen($email, $klant, $onderwerp, $bericht);
                  header("Location: ../delete.php");
             }

      ?>
      
   </body>
</html>

my delete script

<?php

include "config.php"; // Using database connection file here
//werkt nog niet hij kan namelijk de id niet vinden dus dat moet nog gefixd worden
// $id = $_GET['id'];
// var_dump($id);
// sql to delete a record
$order_id= $_GET['order_id'];
$sql = "DELETE FROM orders WHERE order_id=?";
$stmt = $conn->prepare($sql); 
$stmt->bind_param('s', $order_id);
if ($stmt->execute()) {
  $result = $stmt->get_result();
  echo "order deleted successfully";
} else {
  echo "Error order record: " . $conn->error;
}

// //go back to index.php
    //   header('Location: index.php'); 
    //  exit;

please help me idk what to do now

What I have tried:

tried looking this up on stack overflow but tbh I didn't really understand what they meant there

tried seeing what my $order_id shows and it tells me that its NULL

also already tried doing $order_id = $_GET['id']; gives the same error

Posted 9-Dec-21 1:33am

Rebecca2002

Updated 9-Dec-21 2:12am

v4

Add a Solution

Comments

Richard Deeming 9-Dec-21 9:53am

REPOST
This is the same as your previous question:
$_Get['id']; doesnt work[^]

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Chris Copeland · Answer 1 · 2021-12-09T02:12:00

You have a couple of issues with your code:

PHP

<a href="mail/bevestigordermail.php?id="<?php echo $row['order_id']; ?>  >

First, you're closing the href attribute before you'd actually appended the order ID. You need to move the closing " so that it's after the echo statement, like so:

PHP

<a href="mail/bevestigordermail.php?id=<?php echo $row['order_id']; ?>"  >
                                                                      ^

Second, you've not named the URL parameter order_id, you've named it id so it won't be picked up by PHP. If you rename the URL parameter then the PHP file should pick it up:

PHP

<a href="mail/bevestigordermail.php?order_id=<?php echo $row['order_id']; ?>"  >
                                    ^^^^^^^^

Once last remark on your HTML structure, you're wrapping <button> elements in an <a> element which isn't really a good idea. If you're intending on using a button then might I recommend you use a <form> element instead? Something like:

PHP

<form action="mail/bevestigordermail.php?order_id=<?php echo $row['order_id']; ?>" method="get">
  <button type="submit">....</button>
</form>