Queenabby/addons/fecmall/furnilife_theme/app/appfront/theme/furnilife/widgets/topsearch.php

<?php
/**
 * FecShop file.
 *
 * @link http://www.fecshop.com/
 * @copyright Copyright (c) 2016 FecShop Software LLC
 * @license http://www.fecshop.com/license/
 */
?>
<form method="get" name="searchFrom" class="js_topSeachForm" action="<?= Yii::$service->url->getUrl('catalogsearch/index');   ?>">
    <div class="navigation-search d-none d-lg-block">
        <input name="q" class="searchArea js_k2 ac_input" type="search" placeholder="Search" maxlength="150"  value="<?=  \Yii::$service->helper->htmlEncode(Yii::$app->request->get('q'));  ?>">
        <button type="submit" class="fl js_topSearch seachBtn"><i class="icon ion-md-search"></i></button>
    </div>

</form>