最近在写wordpress 主题，然后再网上找回来的代码发现，没有搜索页及普通页面的 关键词及描述。下面我们对网上的代码进行补充。代码如下：
<title><?php wp_title( '_', true, 'right' ); ?></title>
<?php
if (is_home()){
$keywords = $description = get_bloginfo('description');
} elseif (is_single()){
$tags = wp_get_post_tags($post->ID);
foreach ($tags as $tag){
$keywords = $keywords.$tag->name.",";
}
$keywords = rtrim($keywords, ', ');
if($post->post_excerpt){
$description = $post->post_excerpt;
}else{
$description = mb_strimwidth(strip_tags(apply_filters('the_content',$post->post_content)),0,200);
}
} elseif (is_page()){
$keywords = get_post_meta($post->ID, "keywords", true);
$description = get_post_meta($post->ID, "description", true);
} elseif (is_category()){
$keywords = single_cat_title('', false);
$description = category_description();
} elseif (is_tag()){
$keywords = single_tag_title('', false);
$description = tag_description();
} elseif(is_search()) {
$keywords = $s;
$description = "Search result of ".$s;
}
$keywords = trim(strip_tags($keywords));
$description = trim(strip_tags($description));
?>
<meta name="keywords" content="<?php echo $keywords; ?>" />
<meta name="description" content="<?php echo $description; ?>" />
<link rel="canonical" href="<?php echo get_permalink($post->ID);?>" />
欢迎各位大神做补充~