Wordpress教程丨文章标签链接运用

Wordpress网站在文章编辑时，我们就会为其设置标签关键字的链接，这样做是能对主题站内链进行优化，但如果每篇文章都用手动添加太过繁杂，所以下面我们就为大家介绍文章标签链接运用的自动添加方法：


 

$match_num_from = 1;  //一篇文章中同一个关键字少于多少次锚文本链接（这个直接填1就好了）

$match_num_to = 1; //一篇文章中同一个关键字最多出现多少次描文本（建议不超过2次）

//连接到WordPress的模块

add_filter('the_content','tag_link',1);

function tag_link($content){

global $match_num_from,$match_num_to;

$posttags = get_the_tags();

if ($posttags) {

usort($posttags, "tag_sort");

foreach($posttags as $tag) {

$link = get_tag_link($tag->term_id);

$keyword = $tag->name;

$cleankeyword = stripslashes($keyword);

$url = "<span class=\"tag-span\"><a class=\"tag\" href=\"$link\" title=\"".str_replace('%s',addcslashes($cleankeyword, '$'),__('View all posts in %s'))."\"";

$url .= ' target="_blank"';

$url .= ">".addcslashes($cleankeyword, '$')."</a></span>";

$limit = rand($match_num_from,$match_num_to);

$content = preg_replace( '|(<a[^>]+>)(.*)('.$ex_word.')(.*)(</a[^>]*>)|U'.$case, '%&&&&&%', $content);

$content = preg_replace( '|(<img)(.*?)('.$ex_word.')(.*?)(>)|U'.$case, '%&&&&&%', $content);

$cleankeyword = preg_quote($cleankeyword,'\'');

$regEx = '\'(?!((<.*?)|(<a.*?)))('. $cleankeyword . ')(?!(([^<>]*?)>)|([^>]*?</a>))\'s' . $case;

$content = preg_replace($regEx,$url,$content,$limit);

$content = str_replace( '%&&&&&%', stripslashes($ex_word), $content);

}

}

return $content;

}