<?php
	
	// What is the new data for Steve's record?
	$FirstName = 'Steven';
	$LastName = 'Ollinger';
	$Username = 'ollinger';
	// What record are we updating?
	$id = 6;

	// Create a DSN for MySQL 
	// (Syntax: 'mysql:host=[server];dbname=[database]')
	$MySQLDSN = 'mysql:host=localhost;dbname=TestDatabase';

	try {
		// Create a new (MySQL) PDO object 
		// (Syntax: 'PDO([DSN], [UserName], [Password]')
		$db = new PDO($MySQLDSN, 'TestUser', 'TestPassword');
		// What is your intended query?
		$sql = "update users set vcFirstName=?,vcLastName=?,vcUsername=? where intID_pk=?";
		// Prepare the statement
		$query = $db->prepare($sql);
		// Execute the statement
		$query->execute(array($FirstName,$LastName,$Username,$id));

		// Store any resulting errors
		$errorInfo = $db->errorInfo();
		// If there were any errors, assign them to the error variables
		if (isset($errorInfo[2])){
			$error = $errorInfo[2];
		}

	} catch (PDOException $e) {
		// Catch any PDO exceptions
		$error = $e->getMessage();
	}

	// Did an error occur during the above operation?
	if (isset($error)) {
		// Display the error
		echo $error;
	} else {
		// Indicate that all went well
		echo 'OK';
	}

?>