<?xml version="1.0"?>
<documentation title="Valid Hook Name">
<standard>
<![CDATA[
Use lowercase letters in action and filter names. Separate words using underscores.
]]>
</standard>
<code_comparison>
<code title="Valid: lowercase hook name.">
<![CDATA[
do_action( <em>'prefix_hook_name'</em>, $var );
]]>
</code>
<code title="Invalid: mixed case hook name.">
<![CDATA[
do_action( <em>'Prefix_Hook_NAME'</em>, $var );
]]>
</code>
</code_comparison>
<code_comparison>
<code title="Valid: words separated by underscores.">
<![CDATA[
apply_filters( <em>'prefix_hook_name'</em>, $var );
]]>
</code>
<code title="Invalid: using non-underscore characters to separate words.">
<![CDATA[
apply_filters( <em>'prefix\hook-name'</em>, $var );
]]>
</code>
</code_comparison>
</documentation>