We use Apache Ant to automate the build process. It orchestrates the execution of the various tools in the build.xml build script (download). The build script assumes that the rule sets for PHP_CodeSniffer and PHPMD are located at build/phpcs.xml and build/phpmd.xml.

<?xml version="1.0" encoding="UTF-8"?>
<project name="name-of-project" default="build">
 <!-- By default, we assume all tools to be on the $PATH -->
 <property name="toolsdir" value=""/>

 <!-- Uncomment the following when the tools are in ${basedir}/vendor/bin -->
 <!-- <property name="toolsdir" value="${basedir}/vendor/bin/"/> -->

 <target name="build"
         depends="prepare,lint,phploc-ci,pdepend,phpmd-ci,phpcs-ci,phpcpd-ci,phpunit,phpdox"
         description=""/>

 <target name="build-parallel"
         depends="prepare,lint,tools-parallel,phpunit,phpdox"
         description=""/>

 <target name="tools-parallel" description="Run tools in parallel">
  <parallel threadCount="2">
   <sequential>
    <antcall target="pdepend"/>
    <antcall target="phpmd-ci"/>
   </sequential>
   <antcall target="phpcpd-ci"/>
   <antcall target="phpcs-ci"/>
   <antcall target="phploc-ci"/>
  </parallel>
 </target>

 <target name="clean"
         unless="clean.done"
         description="Cleanup build artifacts">
  <delete dir="${basedir}/build/api"/>
  <delete dir="${basedir}/build/coverage"/>
  <delete dir="${basedir}/build/logs"/>
  <delete dir="${basedir}/build/pdepend"/>
  <delete dir="${basedir}/build/phpdox"/>
  <property name="clean.done" value="true"/>
 </target>

 <target name="prepare"
         unless="prepare.done"
         depends="clean"
         description="Prepare for build">
  <mkdir dir="${basedir}/build/api"/>
  <mkdir dir="${basedir}/build/coverage"/>
  <mkdir dir="${basedir}/build/logs"/>
  <mkdir dir="${basedir}/build/pdepend"/>
  <mkdir dir="${basedir}/build/phpdox"/>
  <property name="prepare.done" value="true"/>
 </target>

 <target name="lint" description="Perform syntax check of sourcecode files">
  <apply executable="php" failonerror="true">
   <arg value="-l" />

   <fileset dir="${basedir}/src">
    <include name="**/*.php" />
    <modified />
   </fileset>

   <fileset dir="${basedir}/tests">
    <include name="**/*.php" />
    <modified />
   </fileset>
  </apply>
 </target>

 <target name="phploc"
         description="Measure project size using PHPLOC and print human readable output. Intended for usage on the command line.">
  <exec executable="${toolsdir}phploc">
   <arg value="--count-tests" />
   <arg path="${basedir}/src" />
   <arg path="${basedir}/tests" />
  </exec>
 </target>

 <target name="phploc-ci"
         depends="prepare"
         description="Measure project size using PHPLOC and log result in CSV and XML format. Intended for usage within a continuous integration environment.">
  <exec executable="${toolsdir}phploc">
   <arg value="--count-tests" />
   <arg value="--log-csv" />
   <arg path="${basedir}/build/logs/phploc.csv" />
   <arg value="--log-xml" />
   <arg path="${basedir}/build/logs/phploc.xml" />
   <arg path="${basedir}/src" />
   <arg path="${basedir}/tests" />
  </exec>
 </target>

 <target name="pdepend"
         depends="prepare"
         description="Calculate software metrics using PHP_Depend and log result in XML format. Intended for usage within a continuous integration environment.">
  <exec executable="${toolsdir}pdepend">
   <arg value="--jdepend-xml=${basedir}/build/logs/jdepend.xml" />
   <arg value="--jdepend-chart=${basedir}/build/pdepend/dependencies.svg" />
   <arg value="--overview-pyramid=${basedir}/build/pdepend/overview-pyramid.svg" />
   <arg path="${basedir}/src" />
  </exec>
 </target>

 <target name="phpmd"
         description="Perform project mess detection using PHPMD and print human readable output. Intended for usage on the command line before committing.">
  <exec executable="${toolsdir}phpmd">
   <arg path="${basedir}/src" />
   <arg value="text" />
   <arg path="${basedir}/build/phpmd.xml" />
  </exec>
 </target>

 <target name="phpmd-ci"
         depends="prepare"
         description="Perform project mess detection using PHPMD and log result in XML format. Intended for usage within a continuous integration environment.">
  <exec executable="${toolsdir}phpmd">
   <arg path="${basedir}/src" />
   <arg value="xml" />
   <arg path="${basedir}/build/phpmd.xml" />
   <arg value="--reportfile" />
   <arg path="${basedir}/build/logs/pmd.xml" />
  </exec>
 </target>

 <target name="phpcs"
         description="Find coding standard violations using PHP_CodeSniffer and print human readable output. Intended for usage on the command line before committing.">
  <exec executable="${toolsdir}phpcs">
   <arg value="--standard=PSR2" />
   <arg value="--extensions=php" />
   <arg value="--ignore=autoload.php" />
   <arg path="${basedir}/src" />
   <arg path="${basedir}/tests" />
  </exec>
 </target>

 <target name="phpcs-ci"
         depends="prepare"
         description="Find coding standard violations using PHP_CodeSniffer and log result in XML format. Intended for usage within a continuous integration environment.">
  <exec executable="${toolsdir}phpcs" output="/dev/null">
   <arg value="--report=checkstyle" />
   <arg value="--report-file=${basedir}/build/logs/checkstyle.xml" />
   <arg value="--standard=PSR2" />
   <arg value="--extensions=php" />
   <arg value="--ignore=autoload.php" />
   <arg path="${basedir}/src" />
  </exec>
 </target>

 <target name="phpcpd"
         description="Find duplicate code using PHPCPD and print human readable output. Intended for usage on the command line before committing.">
  <exec executable="${toolsdir}phpcpd">
   <arg path="${basedir}/src" />
  </exec>
 </target>

 <target name="phpcpd-ci"
         depends="prepare"
         description="Find duplicate code using PHPCPD and log result in XML format. Intended for usage within a continuous integration environment.">
  <exec executable="${toolsdir}phpcpd">
   <arg value="--log-pmd" />
   <arg path="${basedir}/build/logs/pmd-cpd.xml" />
   <arg path="${basedir}/src" />
  </exec>
 </target>

 <target name="phpunit"
         depends="prepare"
         description="Run unit tests with PHPUnit">
  <exec executable="${toolsdir}phpunit" failonerror="true">
   <arg value="--configuration"/>
   <arg path="${basedir}/build/phpunit.xml"/>
  </exec>
 </target>

 <target name="phpdox"
         depends="phploc-ci,phpcs-ci,phpmd-ci"
         description="Generate project documentation using phpDox">
  <exec executable="${toolsdir}phpdox" dir="${basedir}/build"/>
 </target>
</project>

Here is an overview of the tasks defined in the above build.xml (download) script that are intended to be directly invoked:

The other tasks can, of course, also be invoked directly but that is not their intended purpose. They are invoked by the tasks listed above.

Executing the build.xml script will produce the following build directory:

build
|-- api ...
|-- coverage ...
`-- logs
    |-- checkstyle.xml
    |-- clover.xml
    |-- crap4j.xml
    |-- jdepend.xml
    |-- junit.xml
    |-- phploc.csv
    |-- pmd-cpd.xml
    `-- pmd.xml

These build artifacts will be processed by Jenkins.