File: vendor/phpcsstandards/phpcsextra/Universal/Docs/Constants/UppercaseMagicConstantsStandard.xml

<?xml version="1.0"?>
<documentation xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:noNamespaceSchemaLocation="https://phpcsstandards.github.io/PHPCSDevTools/phpcsdocs.xsd"
    title="Uppercase Magic Constants"
    >
    <standard>
    <![CDATA[
    The PHP native `__...__` magic constant should be in uppercase.
    ]]>
    </standard>
    <code_comparison>
        <code title="Valid: using uppercase.">
        <![CDATA[
echo <em>__LINE__</em>;
include <em>__DIR__</em> . '/file.php';
        ]]>
        </code>
        <code title="Invalid: using lowercase or mixed case.">
        <![CDATA[
echo <em>__NameSpace__</em>;
include dirname(<em>__file__</em>) . '/file.php';
        ]]>
        </code>
    </code_comparison>
</documentation>