<div class="rollover-wrapper inline-block mr15">
<!--<a href="#" class="filtrar tags"><?php
//echo $txt_tag;
?>
<span class="caret"></span></a> -->
<!-- aqui agregue -->
<div class="filtrar-temas">
<a href="#" class="filtrar"><?php
echo $txt_tag;
?>
<span class="caret"></span></a>
<ul style="display:none" class="tags tagsdos">
<?php
echo mifuncion($url_colaborador . $tipo_url, $meta_query_tema, "#anchor");
?>
</ul>
</div>
</div>
<div class="rollover-wrapper inline-block">
<em>Ordenar por</em> <a href="#" class="dropdown-menu"><?php
echo $txt_orden;
?>
<span class="caret"></span></a>
<div class="rollover" style="display: none;">
<ul>
<?php
function mifuncion()
{
echo "yo soy yo";
echo "<br>";
echo "tu eres tu ";
}
mifuncion();