====== Which PHP page included me? ======
<code php>
$fileList = get_included_files();
$topMost = $fileList[0];
if ($topMost == __FILE__) echo 'no parents';
else echo "parent is $topMost";
</code>

<code php>$caller_tmp=explode("/",__FILE__);$caller=end($caller_tmp);</code>