<documentation title="Lowercase Class Keywords">
<standard>
<![CDATA[
The php keywords class, interface, trait, extends, implements, abstract, final, var, and const should be lowercase.
]]>
</standard>
<code_comparison>
<code title="Valid: Lowercase class keywords.">
<![CDATA[
<em>final</em> <em>class</em> Foo <em>extends</em> Bar
{
}
]]>
</code>
<code title="Invalid: Initial capitalization of class keywords.">
<![CDATA[
<em>Final</em> <em>Class</em> Foo <em>Extends</em> Bar
{
}
]]>
</code>
</code_comparison>
</documentation>