SEO optimization for automatically adding keywords and keywords in WordPress articles

This article mainly introduces SEO optimization methods for adding keywords and keywords to WordPress articles, highlighting the role of keywords in search results, you can refer to the keywords of the website and the description of the webpage. The website is friendly to search engines, then, how can we make wordpress blog automatically set the keyword and webpage description for each article. The content of each article is different. how can we enable wordpress to automatically add the article description and keywords? Next let's take a look at how to automatically add the article description and keywords to wordpress.
Add the following code to the functions. php file of your topic. the function of each code is parsed as follows:

Add_action ('WP _ head', 'WP _ keyword'); // add the keyword add_action ('WP _ head', 'WP _ description '); // add the page description function wp_keywords () {global $ s, $ post; $ keywords = ''; if (is_single () {// if it is an article page, keywords: tag + Category ID if (get_the_tags ($ post-> ID) {foreach (get_the_tags ($ post-> ID) as $ tag) $ keywords. = $ tag-> name. ',';} foreach (get_the_category ($ post-> ID) as $ category) $ keywords. = $ category-> cat_name. ','; $ keywords = substr_replace ($ keywords, '',-2);} elseif (is_home () {$ keywords = 'My homepage keywords '; // homepage keyword settings} elseif (is_tag () {// tab keyword settings $ keywords = single_tag_title ('', false);} elseif (is_category ()) {// keyword settings on the category page $ keywords = single_cat_title ('', false);} elseif (is_search () {// keyword settings on the search page $ keywords = esc_html ($ s, 1);} else {// keyword settings on the response page $ keywords = trim (wp_title ('', false);} if ($ keywords) {// output keyword echo"
 \ N ";}} function wp_description () {global $ s, $ post; $ description =''; $ blog_name = get_bloginfo ('name'); if (is_singular ()) {// if the description field exists on the article page, the description is displayed. Otherwise, the content of the article if (! Empty ($ post-> post_excerpt) {$ text = $ post-> post_excerpt;} else {$ text = $ post-> post_content ;} $ description = trim (str_replace (array ("\ r \ n", "\ r", "\ n ","",""),"", str_replace ("\" "," '", strip_tags ($ text); if (! ($ Description) $ description = $ blog_name. "-". trim (wp_title ('', false);} elseif (is_home () {// Set the homepage display description $ description = $ blog_name. "-". get_bloginfo ('Description '). 'Description to be displayed on the homepage '; // add elseif (is_tag () {// Set the description on the TAB $ description = $ blog_name. "Related '". single_tag_title ('', false ). "'article";} elseif (is_category () {// The description settings are displayed on the category page $ description = $ blog_name. "Related '". single_cat_title ('', false ). "'article";} elseif (is_archive () {// The description settings are displayed on the document page $ description = $ blog_name. "In :'". trim (wp_title ('', false )). "'article";} elseif (is_search () {// Set the description displayed on the search page $ description = $ blog_name. ":'". esc_html ($ s, 1 ). "'Search result";} else {// by default, other pages show the description settings $ description = $ blog_name. "Related '". trim (wp_title ('', false )). "'article";} // output description $ description = mb_substr ($ description, 0,220, 'utf-8 '). '.. '; echo"
 \ N ";}

Highlight keywords in search results:

function wps_highlight_results($text){if(is_search()){$sr = get_query_var('s');$keys = explode(" ",$sr);$text = preg_replace('/('.implode('|', $keys) .')/iu', ''.$sr.'', $text);}return $text;}add_filter('the_excerpt', 'wps_highlight_results');add_filter('the_title', 'wps_highlight_results');

Use this code snippet to highlight the search results the_excerpt and the_title in your blog.