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Delete Data From MySQL Using PHP

How to Delete Data From MySQL Using...
How to Delete Data From MySQL Using PHP

To delete data from MySQL the DELETE statement is used. We can delete data from specific column or all column of a table.

To delete selected column data from database the SQL query is

DELETE FROM table_name WHERE some_column=some_value;

To delete all the column data from a table the SQL query is

DELETE FROM table_name;


DELETE * FROM table_name;

In the below example we delete the employee data from MySQL database.

In this example we used 2 file for retrieve data


 die('Could not Connect My Sql:' .mysql_error());


include_once 'database.php';
$result = mysqli_query($conn,"SELECT * FROM employee");
<!DOCTYPE html> <html> <head> <link rel="stylesheet" href="style.css"> <title>Delete employee data</title> </head> <body> <table> <tr> <td>Employee Id</td> <td>First Name</td> <td>Last Name</td> <td>City</td> <td>Email id</td> <td>Action</td> </tr> <?php $i=0; while($row = mysqli_fetch_array($result)) { ?> <tr class="<?php if(isset($classname)) echo $classname;?>"> <td><?php echo $row["userid"]; ?></td> <td><?php echo $row["first_name"]; ?></td> <td><?php echo $row["last_name"]; ?></td> <td><?php echo $row["city_name"]; ?></td> <td><?php echo $row["email"]; ?></td> <td><a href="delete-process.php?userid=<?php echo $row["userid"]; ?>">Delete</a></td> </tr> <?php $i++; } ?> </table> </body> </html>


include_once 'database.php';
$sql = "DELETE FROM employee WHERE userid='" . $_GET["userid"] . "'";
if (mysqli_query($conn, $sql)) {
    echo "Record deleted successfully";
} else {
    echo "Error deleting record: " . mysqli_error($conn);

delete-process.php Alternative Code (PDO)

$servername = "localhost";
$username = "root";
$password = "";
$dbname = "crud";

try {
    $conn = new PDO("mysql:host=$servername;dbname=$dbname", $username, $password);
    /* set the PDO error mode to exception */

     /*sql to delete a record*/
    $sql = "DELETE FROM employee WHERE userid='" . $_GET["userid"] . "'";

    /*use exec() because no results are returned*/
    echo "Record deleted successfully";
catch(PDOException $e)
    echo $sql . "
" . $e->getMessage(); } $conn = null; ?>