1<documentation title="Zend Code Analyzer">
2    <standard>
3    <![CDATA[
4    PHP Code should pass the zend code analyzer.
5    ]]>
6    </standard>
7    <code_comparison>
8        <code title="Valid: Valid PHP Code.">
9        <![CDATA[
10function foo($bar, $baz)
11{
12    return <em>$bar + $baz</em>;
13}
14        ]]>
15        </code>
16        <code title="Invalid: There is an unused function parameter.">
17        <![CDATA[
18function foo($bar, $baz)
19{
20    return <em>$bar + 2</em>;
21}
22        ]]>
23        </code>
24    </code_comparison>
25</documentation>
26