File: vendor/squizlabs/php_codesniffer/src/Standards/Generic/Docs/PHP/LowerCaseTypeStandard.xml

<documentation title="Lowercase PHP Types">
    <standard>
    <![CDATA[
    All PHP types used for parameter type and return type declarations should be lowercase.
    ]]>
    </standard>
    <code_comparison>
        <code title="Valid: Lowercase type declarations used.">
        <![CDATA[
function myFunction(int $foo) : string {
}
        ]]>
        </code>
        <code title="Invalid: Non-lowercase type declarations used.">
        <![CDATA[
function myFunction(<em>Int</em> $foo) : <em>STRING</em> {
}
        ]]>
        </code>
    </code_comparison>
    <standard>
    <![CDATA[
    All PHP types used for type casting should be lowercase.
    ]]>
    </standard>
    <code_comparison>
        <code title="Valid: Lowercase type used.">
        <![CDATA[
$foo = (bool) $isValid;
        ]]>
        </code>
        <code title="Invalid: Non-lowercase type used.">
        <![CDATA[
$foo = <em>(BOOL)</em> $isValid;
        ]]>
        </code>
    </code_comparison>
</documentation>