Ja, parametriserade frågor fungerar perfekt med PHP PDO.
$db = new PDO('pgsql:host=localhost;dbname=cars', 'user', 'password');
$cars = $db->prepare('SELECT * FROM cars WHERE id = :id');
$cars->bindParam(':id', $id = 20, PDO::PARAM_INT);
$cars->execute();
$result = $cars->fetch();
echo 'Name: ' . $result['name'];