Part 6-Admin Panel(Registration): Delete Data from Database in php

As per the video, we have already downloaded the files and linked the CSS and JS.

Step 1: as you have created a register.php page and inside the table we have delete option, table structure given below:

<?php
     include('security.php');
?>

   <div class="table-responsive">
    <?php
        $query = "SELECT * FROM register";
        $query_run = mysqli_query($connection$query);
    ?>
      <table class="table table-bordered" id="dataTable" width="100%" cellspacing="0">
        <thead>
          <tr>
              <th> ID </th>
              <th> Username </th>
              <th>Email </th>
              <th>Password</th>
              <th>UserType</th>
              <th>EDIT</th>
              <th>DELETE</th>
          </tr>
        </thead>
        <tbody>
        <?php
        if(mysqli_num_rows($query_run) > 0)        
        {
            while($row = mysqli_fetch_assoc($query_run))
            {
               ?>
          <tr>
            <td><?php  echo $row['id']; ?></td>
            <td><?php  echo $row['username']; ?></td>
            <td><?php  echo $row['email']; ?></td>
            <td><?php  echo $row['password']; ?></td>
            <td><?php  echo $row['usertype']; ?></td>
            <td>
                <form action="register_edit.php" method="post">
                    <input type="hidden" name="edit_id" value="<?php echo $row['id']; ?>">
                    <button  type="submit" name="edit_btn" class="btn btn-success"> EDIT</button>
                </form>
            </td>
            <td>
                <form action="code.php" method="post">
                  <input type="hidden" name="delete_id" value="<?php echo $row['id']; ?>">
                  <button type="submit" name="delete_btn" class="btn btn-danger"> DELETE</button>
                </form>
            </td>
          </tr>
          <?php
            } 
        }
        else {
            echo "No Record Found";
        }
        ?>
        </tbody>
      </table>
    </div>


Step 2: Create a page with the name code.php and paste the below code.

<?php
include('security.php');

if(isset($_POST['delete_btn']))
{
    $id = $_POST['delete_id'];

    $query = "DELETE FROM register WHERE id='$id";
    $query_run = mysqli_query($connection$query);

    if($query_run)
    {
        $_SESSION['status'] = "Your Data is Deleted";
        $_SESSION['status_code'] = "success";
        header('Location: register.php'); 
    }
    else
    {
        $_SESSION['status'] = "Your Data is NOT DELETED";       
        $_SESSION['status_code'] = "error";
        header('Location: register.php'); 
    }    
}
?>


Step 3: Create a folder called database and then create a file named dbconfig.php and paste the below code.

<?php

$server_name = "localhost";
$db_username = "root";
$db_password = "";
$db_name = "adminpanel";

$connection = mysqli_connect($server_name,$db_username,$db_password,$db_name);

if(!$connection)
{
    die("Connection failed: " . mysqli_connect_error());
    echo '
        <div class="container">
            <div class="row">
                <div class="col-md-8 mr-auto ml-auto text-center py-5 mt-5">
                    <div class="card">
                        <div class="card-body">
                            <h1 class="card-title bg-danger text-white"> Database Connection Failed </h1>
                            <h2 class="card-title"> Database Failure</h2>
                            <p class="card-text"> Please Check Your Database Connection.</p>
                            <a href="#" class="btn btn-primary">:( </a>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    ';
}
?>

Step 4: Create a page security.php and paste the below code.

<?php
session_start();
include('database/dbconfig.php');
if($connection)
{
    // echo "Database Connected";
}
else
{
    header("Location: database/dbconfig.php");
}
?>


Thanks for reading...

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