Why does this pdo::mysql code crash on windows???

<?php
$username = "root";
$password = "";

try {
	$dsn = "mysql:host=localhost;dbname=employees";
	$dbh = new PDO($dsn, $username, $password);
	$dbh->setAttribute(PDO::ATTR_EMULATE_PREPARES, FALSE);
	$dbh->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);

echo "Connected to database<br />" ;

$dbh->exec("DROP TABLE IF EXISTS vCard;");
$dbh->exec("DROP TABLE IF EXISTS emp;");

$table = "CREATE TABLE vCard(
	id INT(4) NOT NULL PRIMARY KEY, 
	firstName VARCHAR (255), 
	lastName VARCHAR (255), 
	office VARCHAR (255), 
	homePh VARCHAR (13), 
	mobilePh VARCHAR (13))";

$dbh->exec($table);

$dbh->beginTransaction();

$dbh->exec("INSERT INTO vCard(id, firstName, lastName, office, homePh, mobilePh)
	VALUES (4834, 'Randy', 'Lewis', 'SR. Front End Developer', '631-842-3375', '917-435-2245');");

$dbh->exec("INSERT INTO vCard(id, firstName, lastName, office, homePh, mobilePh)	
	VALUES (0766, 'Frank', 'LaGuy', 'Graphic Designer', '631-789-8244', '917-324-9897');");

$dbh->exec("INSERT INTO vCard(id, firstName, lastName, office, homePh, mobilePh)	
	VALUES (6684, 'Donnie', 'Dolemite', 'COO', '631-789-9482', '917-234-1222');");

$dbh->exec("INSERT INTO vCard(id, firstName, lastName, office, homePh, mobilePh)	
	VALUES (8569, '', 'McLovin', 'Actor', '631-842-9786', '917-987-8944');");

$dbh->commit();

echo "Data entered successfully<br/><br/>";

	$sql = "SELECT * FROM vCard"; // WHERE firstName = 'Donnie'";

	$results = $dbh->query($sql);

	foreach ($results as $id){
		echo "SSN: ". $id['id']." ";
		echo "First Name: ". $id['firstName']." ";
		echo "Last Name: ". $id['lastName']."<br/>";
	}

}	
catch (PDOException $e) {
	echo "Failed: " . $e->getMessage();
	$dbh->rollback();
}	

?>

basically this line of code is what triggers Apache to crash..

    $sql = "SELECT * FROM vCard";

If I try to select one value like 'id' it'll ... when I try to select more than one value "*" it crashes??????