phpcs.xml

<?xml version="1.0"?>
<ruleset name="ARP">
    <description>ARP coding standard</description>
    <rule ref="PSR12">
        <exclude name="PSR2.ControlStructures.ControlStructureSpacing.SpacingAfterOpenBrace"/>
    </rule>

    <!-- Force array element indentation with 4 spaces -->
    <rule ref="Generic.Arrays.ArrayIndent"/>

    <!-- Forbid `array(...)` -->
    <rule ref="Generic.Arrays.DisallowLongArraySyntax"/>

    <!-- Forbid duplicate classes -->
    <rule ref="Generic.Classes.DuplicateClassName"/>

    <!-- Forbid empty statements -->
    <rule ref="Generic.CodeAnalysis.EmptyStatement">
        <!-- But allow empty catch -->
        <exclude name="Generic.CodeAnalysis.EmptyStatement.DetectedCatch"/>
    </rule>

    <rule ref="Generic.Formatting.SpaceAfterCast">
        <properties>
            <property name="spacing" value="0" />
        </properties>
    </rule>

    <!-- Forbid final methods in final classes -->
    <rule ref="Generic.CodeAnalysis.UnnecessaryFinalModifier"/>

    <!-- Forbid useless empty method overrides -->
    <rule ref="Generic.CodeAnalysis.UselessOverridingMethod"/>
</ruleset>