PHP

Custom search form

function philosophy_search_form($form)
{
   $home_dir = home_url('/');
   $label = __('Search For:', 'philosophy');
   $btn_label = __('Search:', 'philosophy');
   $newform = <<<FORM
      <form role="search" method="get" class="header__search-form" action="{$home_dir}">
         <label>
            <span class="hide-content">{$label}</span>
            <input type="search" class="search-field" placeholder="Type Keywords" value="" name="s" title="{$label}" autocomplete="off">
         </label>
         <input type="submit" class="search-submit" value="{$btn_label}">
      </form>
   FORM;

   return $newform;
}
add_filter('get_search_form', 'philosophy_search_form');

Custom searchform

<form role="search" method="get" class="search-form" action="<?php echo home_url( '/' ); ?>">
    <label>
        <span class="screen-reader-text"><?php echo _x( 'Search for:', 'label' ) ?></span>
        <input type="search" class="search-field"
            placeholder="<?php echo esc_attr_x( 'Search …', 'placeholder' ) ?>"
            value="<?php echo get_search_query() ?>" name="s"
            title="<?php echo esc_attr_x( 'Search for:', 'label' ) ?>" />
    </label>
    <input type="submit" class="search-submit"
        value="<?php echo esc_attr_x( 'Search', 'submit button' ) ?>" />
</form>