如何使wordpress的标签自动变为网站文章的内链

/* 自动为文章内的标签添加内链开始 */

$match_num_from = 1        //一篇文章中同一个标签少于几次不自动链接

$match_num_to = 1      //一篇文章中同一个标签最多自动链接几次

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

}

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

/* 自动为文章内的标签添加内链结束 */

你可以尝试一下

搜BanYuner了解更多

只需要在模板函数文件【functions.php】添加下面代码：

//自动关键词内链

$match_num_from = 1//一个关键字少于多少不替换

$match_num_to = 5//一个关键字最多替换

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” class=”tag_link”‘

$url .= “>”.addcslashes($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

}

上面代码添加到模板函数最后面 ” ?>” 前方，一定要保持格式和符号不要更改，然后更新模板函数，清除浏览器缓存后重新打开一个文章页面就会看的到效果了。

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