phpmd.xml

<?xml version="1.0"?>
<ruleset name="Custom PHPMD Ruleset"
         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 https://pmd.sf.net/ruleset_xml_schema.xsd"
         xsi:noNamespaceSchemaLocation="https://pmd.sf.net/ruleset_xml_schema.xsd">

    <description>
        This is a custom rule set for PHPMD to enforce our coding standards and practices.
    </description>

    <!-- Exclude specific files or directories -->
    <exclude-pattern>*/tests/*</exclude-pattern>

    <!-- Consider these rules for clean code approaches -->
    <rule ref="rulesets/cleancode.xml">
        <!-- Exclude a specific rule -->
        <exclude name="ElseExpression"/>
    </rule>

    <!-- Check complexity and size-related metrics -->
    <rule ref="rulesets/codesize.xml" />

    <!-- Apply design related rules -->
    <rule ref="rulesets/design.xml">
        <!-- You can configure rule properties -->
        <properties>
            <property name="ignoreUnusedPrivateMethodPatterns" value="lazyGet|init"/>
        </properties>
    </rule>

    <!-- Enforce certain naming conventions -->
    <rule ref="rulesets/naming.xml">
        <properties>
            <property name="shortVariable" value="1"/>
            <property name="longVariable" value="20"/>
        </properties>
    </rule>

    <!-- Find controversial rules -->
    <rule ref="rulesets/controversial.xml" />

    <!-- Detect unused code -->
    <rule ref="rulesets/unusedcode.xml" />

</ruleset>