Description:
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When PhD comes across a page with multiple <refname>'s it uses the second for the title, along with the <refpurpose>. 

For example:

 <refname>$_GET</refname>
 <refname>$HTTP_GET_VARS [deprecated]</refname>
 <refpurpose>HTTP GET variables</refpurpose>

The title from that becomes:

 $HTTP_GET_VARS [deprecated] -- HTTP GET variables

This is a request to change that to either using the first refname or both. Likely both. So:

 $_GET -- $HTTP_GET_VARS [deprecated] -- HTTP GET variables

As for the separator between refname's, and between the last refname and refpurpose, not sure, but '--' seems fine. Perhaps someone will suggest something better for these.