Zeric.Net

<?php
$description = "这里是你默认的说明";
$keywords = "这里是你默认的关键字";
 
if (is_home()) { 
	$description = $description;
	$keywords = $keywords;
} else if (is_single()) {
	if ( get_post_meta($post->ID, "description", $single = true) != "" )
	{
		$description = get_post_meta($post->ID, "description", $single = true);
	} else {
		$description = substr(strip_tags($post->post_excerpt),0,200) . "...";
	}
 
	if ( get_post_meta($post->ID, "keywords", $single = true) != "" )
	{
		$keywords = get_post_meta($post->ID, "keywords", $single = true);
	} else {	
		$tags = wp_get_post_tags($post->ID);
		foreach ($tags as $tag ) {
			$keywords = $keywords . ", " . $tag->name;
		}
	}
} else if (is_page()) {
	if ( get_post_meta($post->ID, "description", $single = true) != "" )
	{
		$description = get_post_meta($post->ID, "description", $single = true);
	}
 
	if ( get_post_meta($post->ID, "keywords", $single = true) != "" )
	{
		$keywords = get_post_meta($post->ID, "keywords", $single = true);
	}
} else if (is_category()) {
	$description = category_description();
}
?>
 
<meta name="keywords" content="<?php echo $keywords; ?>" />
<meta name="description" content="<?php echo $description; ?>" />