<documentation title="Empty Statements">
    <standard>
    <![CDATA[
    Control Structures must have at least one statement inside of the body.
    ]]>
    </standard>
    <code_comparison>
        <code title="Valid: There is a statement inside the control structure.">
        <![CDATA[
if ($test) {
    $var = 1;
}
        ]]>
        </code>
        <code title="Invalid: The control structure has no statements.">
        <![CDATA[
if ($test) {
    <em>// do nothing</em>
}
        ]]>
        </code>
    </code_comparison>
</documentation>