File: vendor/squizlabs/php_codesniffer/src/Standards/PSR1/Docs/Methods/CamelCapsMethodNameStandard.xml

<documentation title="Method Name">
    <standard>
    <![CDATA[
    Method names MUST be declared in camelCase.
    ]]>
    </standard>
    <code_comparison>
        <code title="Valid: method name in camelCase.">
        <![CDATA[
class Foo
{
    private function <em>doBar</em>()
    {
    }
}
        ]]>
        </code>
        <code title="Invalid: method name not in camelCase.">
        <![CDATA[
class Foo
{
    private function <em>do_bar</em>()
    {
    }
}
        ]]>
        </code>
    </code_comparison>
</documentation>