doctrine2/manual/codes/Basic Components - Connection - Querying the database.php

<?php

// select all users

$users = $conn->query("FROM User");

// select all users where user email is jackdaniels@drinkmore.info

$users = $conn->query("FROM User WHERE User.Email.address = 'jackdaniels@drinkmore.info'");

// using prepared statements

$users = $conn->query("FROM User WHERE User.name = ?", array('Jack'));
?>