What are the potential benefits and drawbacks of using PHP for developing a cash register system with MySQL integration?

Potential benefits of using PHP for developing a cash register system with MySQL integration include its widespread use and support, ease of integration with MySQL databases, and the availability of numerous libraries and frameworks for building web applications. However, drawbacks may include security vulnerabilities if not properly secured, potential performance issues with large-scale applications, and the need for experienced developers to ensure a robust and efficient system.

<?php
// Sample PHP code for connecting to a MySQL database
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "cash_register";

// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);

// Check connection
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}
echo "Connected successfully";
?>