<documentation title="Disallow Yoda conditions">
<standard>
<![CDATA[
Yoda conditions are disallowed.
]]>
</standard>
<code_comparison>
<code title="Valid: value to be asserted must go on the right side of the comparison.">
<![CDATA[
if ($test === null) <em>{</em>
$var = 1;
<em>}</em>
]]>
</code>
<code title="Invalid: value to be asserted must not be on the left.">
<![CDATA[
if (null === $test) <em>{</em>
$var = 1;
<em>}</em>
]]>
</code>
</code_comparison>
</documentation>