代码部署
免插件实现文章内包含TGA标签的文字自动生成TAG标签内部链接。将以下代码粘贴至WordPress当前主题根目录functions.php文件保存即可。
- //自动TAG转内链
- $match_num_from = 1; // 一个TAG标签出现几次才加链接
- $match_num_to = 1; // 同一个标签加几次链接
- add_filter('the_content','tag_link',1);
- function tag_sort($a, $b){
- if ( $a->name == $b->name ) return 0;
- return ( strlen($a->name) > strlen($b->name) ) ? -1 : 1;
- }
- function tag_link($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);
- $url = "<a href=\"$link\" title=\"".str_replace('%s',addcslashes($cleankeyword, '$'),__('View all posts in %s'))."\"";
- $url .= ' target="_blank"';
- $url .= ">".addcslashes($cleankeyword, '$')."</a>";
- $limit = rand($match_num_from,$match_num_to);
- $content = preg_replace( '|(<a[^>]+>)(.*)('.$ex_word.')(.*)(</a[^>]*>)|U'.$case, '$1$2%&&&&&%$4$5', $content);
- $content = preg_replace( '|(<img)(.*?)('.$ex_word.')(.*?)(>)|U'.$case, '$1$2%&&&&&%$4$5', $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;
- }
- //end
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