Question on searchWP

functions.php

<?php
/* ****************************** Généralités Admin WP  ****************************** */
/* **************  Personnalisation du formulaire de cxion WP  */
function my_login_stylesheet() {
    wp_enqueue_style( 'custom-login', 'http://placedesqhse.net/wp-content/themes/maorigraphe/maori-login.css' );
    //wp_enqueue_script( 'custom-login', get_template_directory_uri() . '/maori-login.js' );
}
add_action( 'login_enqueue_scripts', 'my_login_stylesheet' );
function my_login_logo_url() {
    return home_url();
}
add_filter( 'login_headerurl', 'my_login_logo_url' );

function my_login_logo_url_title() {
    return 'Place des QHSE';
}
add_filter( 'login_headertitle', 'my_login_logo_url_title' );

/* ************** changement expediteur Wordpress dans mails from WP */
add_filter('wp_mail_from', 'new_mail_from');
add_filter('wp_mail_from_name', 'new_mail_from_name');
function new_mail_from($old) {
return 'wordpress@placedesqhse.net';
}
function new_mail_from_name($old) {
return 'administrateur Place Des QHSE';
}

/*  ***************************** SHORTCODES personnalisés  ************** $user=wp_get_current_user(); */ 
add_shortcode( 'xtof' , 'ss_get_current_username' );
function ss_get_current_username(){
    $user = wp_get_current_user();
    $raison= xprofile_get_field_data( 'Raison sociale' , bp_get_member_user_id() );//fetch the text for Raison sociale
    
  return $user->user_firstname . ' ' . $user->user_lastname . ' ';
}
/* ****************************** fin Généralités Admin WP  ****************************** */

/*  ***************************** SearchWP     *********************************************** */
// highlight term extrait - excerpt
function searchwp_term_highlight_auto_excerpt( $excerpt ) {
  global $post;

  if ( ! is_search() ) {
    return $excerpt;
  }

  // prevent recursion
  remove_filter( 'get_the_excerpt', 'searchwp_term_highlight_auto_excerpt' );

  $global_excerpt = searchwp_term_highlight_get_the_excerpt_global( $post->ID, null, get_search_query() );

  add_filter( 'get_the_excerpt', 'searchwp_term_highlight_auto_excerpt' );

  return $global_excerpt;
}

add_filter( 'get_the_excerpt', 'searchwp_term_highlight_auto_excerpt' );

// augmentation du nombre de mots dans l'extrait
function my_searchwp_th_num_words() {
    // use x words instead of the default 55
    return 300;
}

// retourne un extrait du pdf
function maybe_append_searchwp_pdf_excerpt( $excerpt ) {

  global $post;

  $pdf_excerpt_length = 15; // number of words in PDF excerpt

  if ( is_search() && ! post_password_required() ) {

    // prep our 'environment'

    // set up common words
    $common_words = array();
    if ( class_exists( 'SearchWP' ) ) {
      $searchwp = SearchWP::instance();
      $common_words = $searchwp->common;
    }

    // grab the terms
    $terms = explode( ' ', get_search_query() );
    $terms = array_map( 'sanitize_text_field', $terms );

    // if we're on a search page, we want to check to see if the current result
    // has a PDF with any of the search terms in the content

    // first we need to backtrack and find all of the PDFs that are attached to this post
    // since their weight has been attributed to this post

    $attached_pdfs = get_attached_media( 'application/pdf', $post->ID );

    foreach ( $attached_pdfs as $attached_pdf ) {

      // check to make sure there is file content to scan
      if ( $pdf_content = get_post_meta( $attached_pdf->ID, 'searchwp_content', true ) ) {

        // find the first applicable search term (based on character length)
        $flag = false;
        foreach ( $terms as $termkey => $term ) {
          if ( ! in_array( $term, $common_words ) && absint( apply_filters( 'searchwp_minimum_word_length', 3 ) ) <= strlen( $term ) ) {
            $flag = $term;
            break;
          }
        }

        // our haystack is the PDF content
        $haystack = explode( ' ', $pdf_content );

        $pdf_excerpt = '';

        // build our contextual excerpt
        foreach ( $haystack as $haystack_key => $haystack_term ) {
          preg_match( "/\b$flag\b(?!([^<]+)?>)/i", $haystack_term, $matches );
          if ( count( $matches ) ) {

            // our buffer is going to be 1/3 the total number of words in hopes of snagging one or two more
            // highlighted terms in the second and third thirds
            $buffer = floor( ( $pdf_excerpt_length - 1 ) / 3 ); // -1 to accommodate the search term itself

            // find the start point
            $start = 0;
            $underflow = 0;
            if ( $haystack_key < $buffer ) {
              // the match occurred too early to get a proper first buffer
              $underflow = $buffer - $haystack_key;
            } else {
              // there is enough room to grab a proper first buffer
              $start = $haystack_key - $buffer;
            }

            // find the end point
            $end = count( $haystack );
            if ( $end > ( $haystack_key + ( $buffer * 2 ) ) ) {
              $end = $haystack_key + ( $buffer * 2 );
            }

            // if we had an underflow (e.g. the first buffer wasn't fully included) grab more at the end
            $end += $underflow;

            $pdf_excerpt = array_slice( $haystack, $start, $end - $start );
            $pdf_excerpt = implode( ' ', $pdf_excerpt );

            break;
          }
        }

        // append our PDF-specific excerpt to the main excerpt
        if ( ! empty( $pdf_excerpt ) ) {
          $pdf_label = get_the_title( $attached_pdf->ID ); // the PDF label will be the title of the PDF post
          $excerpt .= '<br /><br /><strong>' . $pdf_label . '</strong>: ' . $pdf_excerpt;
        }

      }

    }
  }
  return $excerpt;
}

add_filter( 'get_the_excerpt', 'maybe_append_searchwp_pdf_excerpt' );

add_filter( 'searchwp_th_num_words', 'my_searchwp_th_num_words' );

// Automatically convert permalinks to PDFs in search results to the PDF itself, not the Attachment page
function my_force_direct_pdf_links( $permalink ){
  global $post;

  if ( is_search() && 'application/pdf' == get_post_mime_type( $post->ID ) ) {
    // if the result is a PDF, link directly to the file not the attachment page
    $permalink = wp_get_attachment_url( $post->ID );
  }

  return esc_url( $permalink );
}

add_filter( 'the_permalink', 'my_force_direct_pdf_links' );
add_filter( 'attachment_link', 'my_force_direct_pdf_links' );

/* ****************************** BB PRESS  ************************************ */
/* activer editeur de texte from https://codex.bbpress.org/enable-visual-editor/    */
function bbp_enable_visual_editor( $args = array() ) {
    $args['tinymce'] = true;
    $args['teeny'] = false;
    $args['quicktags'] = false;
    return $args;
}
add_filter( 'bbp_after_get_the_content_parse_args', 'bbp_enable_visual_editor' );

/* filter to add description after forums titles on forum index https://codex.bbpress.org/layout-and-functionality-examples-you-can-use/ */
function rw_singleforum_description() {
  echo '<div class="bbp-forum-content">';
  echo bbp_forum_content();
  echo '</div>';
}
add_action( 'bbp_template_before_single_forum' , 'rw_singleforum_description');

/* display bbPress search form above single topics and forums */
function rk_bbp_search_form(){
  
    if ( bbp_allow_search()) {
        ?>
        <div class="bbp-search-form">
  
            <?php bbp_get_template_part( 'form', 'search' ); ?>
  
        </div>
        <?php
    }
}
  
add_action( 'bbp_template_before_single_forum', 'rk_bbp_search_form' );
add_action( 'bbp_template_before_single_topic', 'rk_bbp_search_form' );

/* Icones pour les statuts des posts
Show status labels for bbPress Topics <img src="http://placedesqhse.net/wp-content/themes/jupiter/assets/icons/icomoon/svg/69.svg" alt="sticky" width="16px">
// mk-moon-stack-empty /mk-moon-stack-plus/ mk-icon-exclamation / mk-li-apeaker
 */
function rk_sticky_topics() {
  
   if ( bbp_is_topic_sticky() && !bbp_is_topic_closed() )
      echo '<span class="sticky"><img src="http://placedesqhse.net/wp-content/themes/jupiter/assets/icons/icomoon/svg/69.svg" alt="sticky" width="16px"></span>';
}
  
add_action( 'bbp_theme_before_topic_title', 'rk_sticky_topics' );

function rk_announcement_topics() {
  
   if ( bbp_is_topic_sticky() && bbp_is_topic_closed() )
      echo '<span class="announcement"><img src="http://placedesqhse.net/wp-content/themes/jupiter/assets/icons/pe-line-icons/svg/e662.svg" alt="announcement" width="16px"></span>';
}
  
add_action( 'bbp_theme_before_topic_title', 'rk_announcement_topics' );

function rk_new_topics() {
$offset = 60*60*12; 
  
   if ( get_post_time() > date('U') - $offset )
      echo '<span class="new"><img src="http://placedesqhse.net/wp-content/themes/jupiter/assets/icons/icomoon/svg/e23b.svg" alt="new" width="16px"></span>';
}
  
add_action( 'bbp_theme_before_topic_title', 'rk_new_topics' );

/* ******************************  fin BB PRESS  ************************************ */

/* **************************** Début Hooks Woocommerce *******************************/
/* https://docs.woocommerce.com/document/tutorial-customising-checkout-fields-using-actions-and-filters/ */
/* ***************************** Fin Hooks Woocommerce *******************************/







?>

search.php

<?php
/*
** search.php
** mk_build_main_wrapper : builds the main divisions that contains the content. Located in framework/helpers/global.php
** mk_get_view gets the parts of the pages, modules and components. Function located in framework/helpers/global.php
*/

get_header();

mk_build_main_wrapper( mk_get_view('templates', 'wp-search', true) );


get_footer();

wp-search.php

<section class="mk-search-loop">

<section class="widget widget_search"><p><?php esc_html_e( 'Not so happy with results? Search for a new keyword ', 'mk_framework' ); ?></p>
	<form class="mk-searchform" method="get" id="searchform" action="<?php echo home_url('/'); ?>">
		<input type="text" class="text-input" placeholder="<?php esc_attr_e( 'Search site', 'mk_framework' ); ?>" value="" name="s" id="s" />
		<i class="mk-searchform-icon"><?php Mk_SVG_Icons::get_svg_icon_by_class_name(true,'mk-icon-search',16); ?><input value="" class="search-button" type="submit" /></i>
	</form>
</section>

<?php

	if ( have_posts() ):
		while ( have_posts() ) :
			the_post();

			$post_type =  get_post_type();
			?>

				<article class="search-result-item">
					
					<h4 class="the-title"><a href="<?php echo esc_url( get_permalink() ); ?>"><?php the_title(); ?></a></h4>

					<div class="search-loop-meta">
						<span><?php esc_html_e( 'By', 'mk_framework' ); ?> <?php the_author_posts_link(); ?></span>

							<time datetime="<?php the_time('Y-m-d'); ?>">
			
								<?php the_date('', '<time datetime="'.get_the_time().'">' . esc_html__( 'On', 'mk_framework' ) . ' <a href="'.get_month_link( get_the_time( "Y" ), get_the_time( "m" ) ).'">', '</a></time>'); ?>
								</a>
							</time>
						<?php
							echo '<span class="mk-search-cats">';
								switch ($post_type) {
		
									case 'post':
											echo esc_html__( 'In', 'mk_framework' ) . ' '.get_the_category_list( ', ' );
										break;
									case 'portfolio':
											echo esc_html__( 'In', 'mk_framework' ) . ' '.implode(', ', mk_get_custom_tax(get_the_id(), 'portfolio', true));
										break;	
									case 'news':
											echo esc_html__( 'In', 'mk_framework' ) . ' '.implode(', ', mk_get_custom_tax(get_the_id(), 'news', true));
										break;			
								}
							echo '</span>';
						?>
					</div>



					<div class="the-excerpt"><p><?php mk_excerpt_max_charlength(300) ?></p></div>
				</article>

			

<?php
			$post_type = '';
		endwhile;
	

	mk_post_pagination(NULL);

	wp_reset_query();

	endif;
		

		
	?>

</section>