phpcs.xml

<?xml version="1.0"?>
<ruleset xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" name="PHP_CodeSniffer" xsi:noNamespaceSchemaLocation="phpcs.xsd">
    <exclude-pattern>*.js</exclude-pattern>

    <rule ref="PSR12"/>

    <rule ref="Squiz.Arrays.ArrayBracketSpacing"/>
    <rule ref="Squiz.ControlStructures.ControlSignature"/>
    <rule ref="Squiz.Functions.FunctionDeclarationArgumentSpacing"/>
    <rule ref="Squiz.Scope.MethodScope"/>
    <rule ref="Squiz.WhiteSpace.ControlStructureSpacing"/>
    <rule ref="Squiz.WhiteSpace.OperatorSpacing"/>
    <rule ref="Squiz.WhiteSpace.SuperfluousWhitespace"/>
    <rule ref="Generic.Arrays.DisallowLongArraySyntax"/>
    <rule ref="Generic.Commenting.Todo"/>
    <rule ref="Generic.ControlStructures.InlineControlStructure"/>
    <rule ref="Generic.Formatting.DisallowMultipleStatements"/>
    <rule ref="Generic.Formatting.SpaceAfterCast"/>
    <rule ref="Generic.PHP.DeprecatedFunctions"/>
    <rule ref="Generic.PHP.LowerCaseKeyword"/>
    <rule ref="Generic.Strings.UnnecessaryStringConcat"/>
    <rule ref="Generic.WhiteSpace.IncrementDecrementSpacing"/>
    <rule ref="PSR2.Classes.PropertyDeclaration"/>
    <rule ref="PSR2.Methods.MethodDeclaration"/>
    <rule ref="PSR2.Files.EndFileNewline"/>
    <rule ref="Zend.Files.ClosingTag"/>
    <rule ref="Generic.PHP.ForbiddenFunctions">
        <properties>
            <property name="forbiddenFunctions" type="array">
                <element key="sizeof" value="count"/>
                <element key="delete" value="unset"/>
                <element key="print" value="echo"/>
                <element key="is_null" value="null"/>
                <element key="create_function" value="null"/>
                <element key="var_dump" value="null"/>
                <element key="split" value="explode"/>
                <element key="join" value="implode"/>
            </property>
        </properties>
    </rule>

    <rule ref="Generic.Arrays.ArrayIndent"/>
    <rule ref="Squiz.Arrays.ArrayDeclaration.KeyNotAligned">
        <severity>0</severity>
    </rule>
    <rule ref="Squiz.Arrays.ArrayDeclaration.ValueNotAligned">
        <severity>0</severity>
    </rule>
    <rule ref="Squiz.Arrays.ArrayDeclaration.CloseBraceNotAligned">
        <severity>0</severity>
    </rule>
    <rule ref="Squiz.Arrays.ArrayDeclaration.CloseBraceNewLine">
        <severity>0</severity>
    </rule>

    <!-- Private methods MUST not be prefixed with an underscore -->
    <rule ref="PSR2.Methods.MethodDeclaration.Underscore">
        <type>error</type>
    </rule>

    <!-- Private properties MUST not be prefixed with an underscore -->
    <rule ref="PSR2.Classes.PropertyDeclaration.Underscore">
        <type>error</type>
    </rule>

  </ruleset>