function deleteUser($userID) { //connect to database $db = new PDO('mysql:host=localhost;dbname=your_db_name', 'username', 'password'); //build SQL query to delete user $query = "DELETE FROM users WHERE id = :id"; //prepare statement and execute $stmt = $db->prepare($query); $stmt->execute(array(':id' => $userID)); //display success message echo "User deleted successfully!"; }In this example, the deleteUser function takes a parameter of the userID, which is used as a condition in the SQL query to delete the user from the 'users' table in the database. The PDO library is used to connect to the database and execute the SQL query. Overall, the deleteUser method is a useful function for web developers who need to manage user accounts in their web applications. It helps to keep the database organized and efficient, while providing a seamless user experience for genuine users. The package library used in the example above is PDO, but there are other libraries that can also be used depending on preference and application requirements.