<documentation title="One Object Structure Per File">
<standard>
<![CDATA[
There should only be one class or interface or trait defined in a file.
]]>
</standard>
<code_comparison>
<code title="Valid: Only one object structure in the file.">
<![CDATA[
<?php
<em>trait Foo</em>
{
}
]]>
</code>
<code title="Invalid: Multiple object structures defined in one file.">
<![CDATA[
<?php
<em>trait Foo</em>
{
}
<em>class Bar</em>
{
}
]]>
</code>
</code_comparison>
</documentation>