WordPress SEO技巧之 – 为关键词自动添加超链接,只要在主题的function.php里添加如下代码:
function auto_post_link($content) { global $post; $content = preg_replace('/<\s*img\s+[^>]*?src\s*=\s*(\'|\")(.*?)\\1[^>]*?\/?\s*>/i', "<a href=\"".get_permalink()."\" title=\"".$post->post_title."\" ><img src=\"$2\" alt=\"".$post->post_title."\" /></a>", $content); $posttags = get_the_tags(); if ($posttags) { foreach($posttags as $tag) { $link = get_tag_link($tag->term_id); $keyword = $tag->name; $content = preg_replace('\'(?!((<.*?)|(<a.*?)))('. $keyword . ')(?!(([^<>]*?)>)|([^>]*?</a>))\'s','<a href="'.$link.'" title="'.$keyword.'">'.$keyword.'</a>',$content,2);//最多替换2个重复的词,避免过度SEO } } return $content; } add_filter ('the_content', 'auto_post_link',0);" />