<?php  
//自动标签内链
   function nltag($content ,$domain) {
            global $CACHE;  
            $tag_cache = $CACHE->readCache('tags');              
            foreach($tag_cache as $value){  
                $tag_url = Url::tag($value['tagurl']);  
                $keyword = $value['tagname'];  
                $cleankeyword = stripslashes($keyword);  
                $url = "<a href=\"{$tag_url}\" title=\"浏览关于“{$cleankeyword}”的文章\" target=\"_blank\" >{$cleankeyword}</a>";  
                $regEx = '\'(?!((<.*?)|(<a.*?)))('. $cleankeyword . ')(?!(([^<>]*?)>)|([^>]*?</a>))\'s';  
                $content = preg_replace($regEx,$url,$content);          
}  
return $content;  
}  
?> 

<?php echo $log_content; ?>

<?php echo nltag($log_content,$domain);?>