phpmd_ruleset.xml
<?xml version="1.0"?>
<ruleset name="PHPMD rule set for my project" xmlns="http://pmd.sf.net/ruleset/1.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://pmd.sf.net/ruleset/1.0.0 http://pmd.sf.net/ruleset_xml_schema.xsd"
xsi:noNamespaceSchemaLocation="http://pmd.sf.net/ruleset_xml_schema.xsd">
<description>Custom rules for checking my project</description>
<rule ref="rulesets/cleancode.xml">
<exclude name="StaticAccess"/>
</rule>
<rule ref="rulesets/design.xml">
<exclude name="CouplingBetweenObjects"/>
</rule>
<rule ref="rulesets/design.xml/CouplingBetweenObjects">
<properties>
<property name="minimum" value="25" />
</properties>
</rule>
<rule ref="rulesets/naming.xml">
<exclude name="ShortVariable"/>
<exclude name="LongVariable"/>
</rule>
<rule ref="rulesets/naming.xml/ShortVariable">
<properties>
<property name="minimum" value="2" />
</properties>
</rule>
<rule ref="rulesets/naming.xml/LongVariable">
<properties>
<property name="maximum" value="30" />
</properties>
</rule>
</ruleset>