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11月
06
2014

非插件实现高效的SEO优化

非插件实现高效的SEO优化

WordPress有很多SEO插件来帮助进行搜索引擎优化。如果你不想使用插件,下面这个高效的代码,将使你的博客对搜索引擎更加友好。

seo1

将下面代码粘贴到你的functions.php文件:

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 = ''; 
 
    // description 
    $seo_desc = get_post_meta($post->ID, 'mm_seo_desc', true); 
    $description = get_bloginfo('description', 'display'); 
    $pagedata = get_post($post->ID); 
    if (is_singular()) { 
        if (!empty($seo_desc)) { 
            $content = $seo_desc; 
        } else if (!empty($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"; 
 
    // keywords 
    $keys = get_post_meta($post->ID, 'mm_seo_keywords', true); 
    $cats = get_the_category(); 
    $tags = get_the_tags(); 
    if (empty($keys)) { 
        if (!empty($cats)) foreach($cats as $cat) $keys .= $cat->name . ', '; 
        if (!empty($tags)) foreach($tags as $tag) $keys .= $tag->name . ', '; 
        $keys .= $default_keywords; 
    } 
    $output .= "\t\t" . '<meta name="keywords" content="' . esc_attr($keys) . '">' . "\n"; 
 
    // robots 
    if (is_category() || is_tag()) { 
        $paged = (get_query_var('paged')) ? get_query_var('paged') : 1; 
        if ($paged > 1) {  www.parkasale.org            $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="rwww.parkasale.orgobots" content="noindex,follow">' . "\n"; 
    } 
 
    // title 
    $title_custom = get_post_meta($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 (!empty($title_custom)) $title = $title_custom; 
    if ($paged >= 2 || $page >= 2) $page_number = ' | ' . sprintf('Page %s', max($paged, $page)); 
    else $page_number = '';  www.parkasale.org 
    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 . ' www.parkasale.org| ' . $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; 
    else                              $seo_title = $name . ' | ' . $description; 
 
    $output .= "\t\t" . '<title>' . esc_attr($seo_title . $page_number) . '</title>' . "\n"; 
 
    return $output; 
www.parkasale.org需修改一下$default_keywords 后面默认的关键字

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