views/partials/search_form.html.php
<?php
/**
* Search form partial.
*
* This partial is included via header.inc.php
*/
?>
<form id='search_form' action='<?= $config->urls->root?>search/' method='get'>
<input type='text' name='q' id='search_query' value='<?= htmlentities($q, ENT_QUOTES, 'UTF-8'); ?>' />
<button type='submit' class="btn btn--primary" id='search_submit'>Search</button>
</form>