pdepend.xml

<?xml version="1.0"?>
<symfony:container xmlns:symfony="http://symfony.com/schema/dic/services"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns="http://pdepend.org/schema/dic/pdepend"
    xsi:schemaLocation="http://symfony.com/schema/dic/services http://symfony.com/schema/dic/services/services-1.0.xsd">
    <config>
        <cache>
            <driver>memory</driver>
        </cache>
    </config>
</symfony:container>