Easiest PHPUnit - Jenkins integration (Ant build & JUnit reports)

phpunit.ant.build.xml

<project name="Test" default="test" basedir=".">
    <target name="test">
        <exec executable="phpunit" failonerror="true" />
    </target>
</project>

phpunit.xml

<phpunit>
    <testsuites>
        <!-- testsuites here -->
    </testsuites>

    <logging>
        <log type="junit" target="./report/junit.xml" logIncompleteSkipped="false"/>
    </logging>
</phpunit>