<?php if ( !empty( dustrial_get_option ('menu_search_btn') ) ) { ?>
  <a class="header-search" href="#test-popup" data-effect="mfp-zoom-in">
    <i class="fa fa-search" aria-hidden="true"></i>
  </a>
  <div id="test-popup" class="white-popup mfp-with-anim mfp-hide">
    <form action="<?php echo esc_url(home_url('/')); ?>" method="get">
      <div class="form-group">
        <label for="Search"><?php echo esc_html( dustrial_get_option ('menu_search_title') ); ?></label>
        <input type="text" class="form-control" name="s" id="Search" placeholder="<?php esc_attr_e( 'Enter Search Key', 'dustrial' ); ?>">
      </div>
      <button type="submit" class="btn btn-primary"><?php echo esc_html( dustrial_get_option ('menu_search_btn_txt') ); ?></button>
    </form>
  </div>
<?php } ?>