<?php// POSITIONAL PARAMETERS:$users=$conn->query("FROM User WHERE User.name = ?",array('Arnold'));$users=$conn->query("FROM User WHERE User.id > ? AND User.name LIKE ?",array(50,'A%'));// NAMED PARAMETERS:$users=$conn->query("FROM User WHERE User.name = :name",array(':name'=>'Arnold'));$users=$conn->query("FROM User WHERE User.id > :id AND User.name LIKE :name",array(':id'=>50,':name'=>'A%'));?>