$filter .= '<li class="filter">' . "\n" . '
<div class="wraper-filter">' . "\n" . '
<a href="#" class="onfilter" data-filter="*"><span class="fil-in">' . __('All', 'prime') . '</span></a>' . "\n" . '
</div>' . "\n" . '
</li>' . "\n";