关键词 文章采集(如何让wordpress自动添加文章描述和关键词呢?(图))
优采云 发布时间: 2022-01-25 20:24关键词 文章采集(如何让wordpress自动添加文章描述和关键词呢?(图))
网站的关键字和网页描述关系网站对搜索引擎友好。如果手动添加太麻烦,那么如何让wordpress博客自动提供每个文章自动关键字和页面描述。每个文章的内容都不一样,如何让wordpress自动添加文章描述和关键词?下面我们来看看如何在wordpress中自动添加文章descriptions和关键词。将以下代码添加到主题的 functions.php 文件中。各代码功能分析如下:
add_action ( "wp_head", "wp_keywords" ); // 添加关键字add_action ( "wp_head", "wp_description" ); // 添加页面描述 function wp_keywords() { global $s, $post; $keywords = ""; if (is_single ()) { //如果是文章页,关键词则是:标签+分类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 = "我是主页关键词"; //主页关键词设置 } elseif (is_tag ()) { //标签页关键词设置 $keywords = single_tag_title ( "", false ); } elseif (is_category ()) {//分类页关键词设置 $keywords = single_cat_title ( "", false ); } elseif (is_search ()) {//搜索页关键词设置 $keywords = esc_html ( $s, 1 ); } else {//默认页关键词设置 $keywords = trim ( wp_title ( "", false ) ); } if ($keywords) { //输出关键词 echo ""; }}function wp_description() { global $s, $post; $description = ""; $blog_name = get_bloginfo ( "name" ); if (is_singular ()) { //文章页如果存在描述字段,则显示描述,否则截取文章内容 if (! empty ( $post->post_excerpt )) { $text = $post->post_excerpt; } else { $text = $post->post_content; } $description = trim ( str_replace ( array ( "", "", "", " ", " " ), " ", str_replace ( """, """, strip_tags ( $text ) ) ) ); if (! ($description)) $description = $blog_name . "-" . trim ( wp_title ( "", false ) ); } elseif (is_home ()) {//首页显示描述设置 $description = $blog_name . "-" . get_bloginfo ( "description" ) ."首页要显示的描述"; // 首頁要自己加 } elseif (is_tag ()) {//标签页显示描述设置 $description = $blog_name . "有关 "" . single_tag_title ( "", false ) . "" 的文章"; } elseif (is_category ()) {//分类页显示描述设置 $description = $blog_name . "有关 "" . single_cat_title ( "", false ) . "" 的文章"; } elseif (is_archive ()) {//文档页显示描述设置 $description = $blog_name . "在: "" . trim ( wp_title ( "", false ) ) . "" 的文章"; } elseif (is_search ()) {//搜索页显示描述设置 $description = $blog_name . ": "" . esc_html ( $s, 1 ) . "" 的搜索結果"; } else {//默认其他页显示描述设置 $description = $blog_name . "有关 "" . trim ( wp_title ( "", false ) ) . "" 的文章"; } //输出描述 $description = mb_substr ( $description, 0, 220, "utf-8" ) . ".."; echo "";}
在搜索结果中突出显示关键字:
function wps_highlight_results($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");
使用此代码片段在您的博客搜索结果中突出显示搜索词 the_excerpt 和 the_title。