html what method to usefor deleting from database code example

Example: php delete

<?php
$servername = "localhost";
$username = "username";

	$password = "password";
$dbname = 
	"myDBPDO";

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

    // sql to delete a record

	   
	$sql 
	= "DELETE FROM MyGuests WHERE id=3";

	
    // use exec() because no 
	results are returned
    $conn->exec($sql);
    
	echo "Record deleted successfully";
    }
catch(PDOException $e)
    {
    
	echo $sql . "<br>" . $e->getMessage();
    }

	
$conn = null;

?>