ruleset.xml

<?xml version="1.0"?>
<!DOCTYPE ruleset>
<ruleset
        name="Default nucleus PHPMD ruleset"
        xmlns="http://pmd.sourceforge.net/ruleset/2.0.0"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="http://pmd.sourceforge.net/ruleset/2.0.0 http://pmd.sourceforge.net/ruleset_2_0_0.xsd"
>
    <description>Default nucleus PHPMD ruleset</description>

    <rule ref="rulesets/unusedcode.xml" />
    <rule ref="rulesets/codesize.xml" />
    <rule ref="rulesets/cleancode.xml">
        <exclude name="StaticAccess" />
    </rule>
    <rule ref="rulesets/controversial.xml">
        <exclude name="CamelCasePropertyName" />
        <exclude name="CamelCaseVariableName" />
        <exclude name="CamelCaseMethodName" />
    </rule>
    <rule ref="rulesets/design.xml" />
    <rule ref="rulesets/naming.xml">
        <exclude name="ShortVariable" />
        <exclude name="ShortMethodName" />
    </rule>

    <rule ref="rulesets/naming.xml/ShortVariable">
        <properties>
            <property name="exceptions" value="id,to,as,a,b,i" />
        </properties>
    </rule>
    <rule ref="rulesets/naming.xml/ShortMethodName">
        <properties>
            <property name="exceptions" value="id,on,is,to,as" />
        </properties>
    </rule>

    <rule ref="rulesets/controversial.xml/CamelCasePropertyName">
        <properties>
            <property name="allow-underscore" value="true" />
        </properties>
    </rule>
    <rule ref="rulesets/controversial.xml/CamelCaseVariableName">
        <properties>
            <property name="allow-underscore" value="true" />
        </properties>
    </rule>
    <rule ref="rulesets/controversial.xml/CamelCaseMethodName">
        <properties>
            <property name="allow-underscore" value="true" />
        </properties>
    </rule>
</ruleset>