PHP - how to make MySQL update query with PDO?

In PHP it is possible to make SQL UPDATE query with PDO in following way.

1. UPDATE query with PDO example

<?php

	if(isset($_GET['currentId']) 
		&& isset($_GET['newName']) && isset($_GET['newRole']))
	{
		$current_id = $_GET['currentId'];

		$new_name = $_GET['newName'];
		$new_role = $_GET['newRole'];

		$db_name = 'test';
		$db_host = '127.0.0.1'; // 'localhost'
		$db_username = 'root';
		$db_password = 'root';

		$dsn = 'mysql:dbname=' . $db_name . ';host=' . $db_host . ';charset=utf8';
		$pdo = new PDO($dsn, $db_username, $db_password);
		
		$query = 'UPDATE `users` ' 
			. 'SET `name` = :new_name, `role` = :new_role ' 
			. 'WHERE `id` = :current_id';

		$statement = $pdo->prepare($query);

		if($statement === FALSE)
			die('Query preparation error!');

		$parameters = array(
			'current_id' => $current_id,
			'new_name' => $new_name,
			'new_role' => $new_role
		);

		if($statement->execute($parameters))
		{
			$count = $statement->rowCount();
			
			echo 'Number of updated rows is ' . $count . '.';
		}
		else
			echo 'Query execution error!';
	}

?>

Running:

http://localhost/update-user.php?currentId=3&newName=Matt&newRole=admin

Result:

Database:

2. Database preparation

create_tables.sql file:

CREATE TABLE `users` (
	`id` INT(10) UNSIGNED NOT NULL AUTO_INCREMENT,
	`name` VARCHAR(100) NOT NULL,
	`role` VARCHAR(15) NOT NULL,
	PRIMARY KEY (`id`)
)
ENGINE=InnoDB;

insert_data.sql file:

INSERT INTO `users`
	(`name`, `role`)
VALUES
	('John', 'admin'),
	('Chris', 'moderator'),
	('Kate', 'user'),
	('Denis', 'moderator');

See also

1. PHP - how to prevent SQL injection?
2. PHP - how to make MySQL insert query with PDO?
3. PHP - how to make MySQL select query with PDO?
4. PHP - how to make MySQL delete query with PDO?