不用插件就能解决wordpress的SEO，修改functions.php加入如下代码

2024-09-07 00:51:25

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不用插件就能解决wordpress的SEO,修改functions.php加入如下代码即可.

很多人使用插件对wordpress进行SEO优化,其实很多是没有必要用到的,这里为大家提供了一个通用的wordpress 页面SEO设置方法.

将以下代码放置于你主题的functions.php文件中:

function basic_wp_seo() {

    global $page, $paged, $post;

    $default_keywords = 'wordpress, plugins, themes, design, dev, development, security, htaccess, apache, php, sql, html, css, jquery, javascript, tutorials'; // customize

    $output = '';

    // 描述

    $seo_desc = get_post_meta($post->ID, 'mm_seo_desc', true);

    $description = get_bloginfo('description', 'display');

    $pagedata = get_post($post->ID);

    if (is_singular()) {

        if (!emptyempty($seo_desc)) {

            $content = $seo_desc;

        } else if (!emptyempty($pagedata)) {

            $content = apply_filters('the_excerpt_rss', $pagedata->post_content);

            $content = substr(trim(strip_tags($content)), 0, 155);

            $content = preg_replace('#/n#', ' ', $content);

            $content = preg_replace('#/s{2,}#', ' ', $content);

            $content = trim($content);

        }

    } else {

        $content = $description;

    }

    $output .= '<meta name="description" content="' . esc_attr($content) . '">' . "/n";

    // 关键字

    $keys = get_post_meta($post->ID, 'mm_seo_keywords', true);

    $cats = get_the_category();

    $tags = get_the_tags();

    if (emptyempty($keys)) {

        if (!emptyempty($cats)) foreach($cats as $cat) $keys .= $cat->name . ', ';

        if (!emptyempty($tags)) foreach($tags as $tag) $keys .= $tag->name . ', ';

        $keys .= $default_keywords;

    }

    $output .= "/t/t" . '<meta name="keywords" content="' . esc_attr($keys) . '">' . "/n";

    // robots设置

    if (is_category() || is_tag()) {

        $paged = (get_query_var('paged')) ? get_query_var('paged') : 1;

        if ($paged > 1) {

            $output .=  "/t/t" . '<meta name="robots" content="noindex,follow">' . "/n";

        } else {

            $output .=  "/t/t" . '<meta name="robots" content="index,follow">' . "/n";

        }

    } else if (is_home() || is_singular()) {

        $output .=  "/t/t" . '<meta name="robots" content="index,follow">' . "/n";

    } else {

        $output .= "/t/t" . '<meta name="robots" content="noindex,follow">' . "/n";

    }

    // 标题

    $title_custom = get_post_meta($post->ID, 'mm_seo_title', true);

    $url = ltrim(esc_url($_SERVER['REQUEST_URI']), '/');

    $name = get_bloginfo('name', 'display');

    $title = trim(wp_title('', false));

    $cat = single_cat_title('', false);

    $tag = single_tag_title('', false);

    $search = get_search_query();

    if (!emptyempty($title_custom)) $title = $title_custom;

    if ($paged >= 2 || $page >= 2) $page_number = ' | ' . sprintf('Page %s', max($paged, $page));

    else $page_number = '';

    if (is_home() || is_front_page()) $seo_title = $name . ' | ' . $description;

    elseif (is_singular())            $seo_title = $title . ' | ' . $name;

    elseif (is_tag())                 $seo_title = 'Tag Archive: ' . $tag . ' | ' . $name;

    elseif (is_category())            $seo_title = 'Category Archive: ' . $cat . ' | ' . $name;

    elseif (is_archive())             $seo_title = 'Archive: ' . $title . ' | ' . $name;

    elseif (is_search())              $seo_title = 'Search: ' . $search . ' | ' . $name;

    elseif (is_404())                 $seo_title = '404 - Not Found: ' . $url . ' | ' . $name;//开源软件:Vevb.com

    else                              $seo_title = $name . ' | ' . $description;

    $output .= "/t/t" . '<title>' . esc_attr($seo_title . $page_number) . '</title>' . "/n";

    return $output;

}