<documentation title="Deprecated Functions">
<standard>
<![CDATA[
Deprecated functions should not be used.
]]>
</standard>
<code_comparison>
<code title="Valid: A non-deprecated function is used.">
<![CDATA[
$foo = <em>explode</em>('a', $bar);
]]>
</code>
<code title="Invalid: A deprecated function is used.">
<![CDATA[
$foo = <em>split</em>('a', $bar);
]]>
</code>
</code_comparison>
</documentation>