Delete Data Using PHP/MySQL with PDO Query

This tutorial will teach you on how to delete data from database table. I used PHP/MySQL with PDO query in this delete system. To start this tutorial fallow the steps bellow:

Creating Our Database

First we are going to create our database which stores our data. To create a database: 1. Open phpmyadmin 2. Then create database and name it as "pdo_ret". 3. After creating a database name, click the SQL and paste the following code.
  1. CREATE TABLE IF NOT EXISTS `members` (
  2. `id` int(11) NOT NULL AUTO_INCREMENT,
  3. `fname` varchar(100) NOT NULL,
  4. `lname` varchar(100) NOT NULL,
  5. `age` int(5) NOT NULL,
  6. PRIMARY KEY (`id`)
  7. ) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=1 ;

Creating our Database Connection

Next step is to create a database connection and save it as "connect.php". In this Step, we will write our connection script in PDO format.
  1. <?php
  2. /* Database config */
  3. $db_host = 'localhost';
  4. $db_user = 'root';
  5. $db_pass = '';
  6. $db_database = 'pdo_ret';
  7.  
  8. /* End config */
  9.  
  10. $db = new PDO('mysql:host='.$db_host.';dbname='.$db_database, $db_user, $db_pass);
  11. $db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
  12.  
  13. ?>

Creating Our Display With Delete Action

The code bellow will retrieve data from our database table and provide an delete action. Copy the code bellow and save it as "index.php".
  1. <table border="1" cellspacing="0" cellpadding="2" >
  2. <thead>
  3. <tr>
  4. <th> First Name </th>
  5. <th> Last Name </th>
  6. <th> Age </th>
  7. <th> Action </th>
  8. </tr>
  9. </thead>
  10. <tbody>
  11. <?php
  12. include('connect.php');
  13. $result = $db->prepare("SELECT * FROM members ORDER BY id DESC");
  14. $result->execute();
  15. for($i=0; $row = $result->fetch(); $i++){
  16. ?>
  17. <tr class="record">
  18. <td><?php echo $row['fname']; ?></td>
  19. <td><?php echo $row['lname']; ?></td>
  20. <td><?php echo $row['age']; ?></td>
  21. <td><a href="delete.php?id=<?php echo $row['id']; ?>"> delete </a></td>
  22. </tr>
  23. <?php
  24. }
  25. ?>
  26. </tbody>
  27. </table>

Writing Our Delete Script

This script will Delete the data in our database table. Copy the code bellow and save it as "delete.php".
  1. <?php
  2. include('connect.php');
  3. $id=$_GET['id'];
  4. $result = $db->prepare("DELETE FROM members WHERE id= :memid");
  5. $result->bindParam(':memid', $id);
  6. $result->execute();
  7. header("location: index.php");
  8. ?>
That's it you've been successfully created your delete script using PHP/MySQL with PDO query.

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