【PHP】phpcms 关联连接修复

     function _keylinks($txt, $replacenum = '',$link_mode = 1) {
         $keywords = $this->data['keywords'];

         if($keywords)
         {
             $keywords = strpos(',',$keywords) === false ? explode(' ',$keywords) : explode(',',$keywords);
         }

         if($link_mode && !empty($keywords))
         {
             foreach($keywords as $keyword)
             {
                 $linkdatas[] = $keyword;
             }
         } else {
             $linkdatas = getcache('keylink','commons');
         }

         if($linkdatas)
         {
             $word = $replacement = array();

             foreach($linkdatas as $v)
             {
                 if($link_mode && $keywords)
                 {
                     $word1[]       = '/' . preg_quote($v, '/') . '(?!([^<]*>)|([^<]*<\/a>))/is';
                     $word2[]       = $v;
                     $replacement[] = '<a href="javascript:;" onclick="show_ajax(this)" class="keylink">'.$v.'</a>';
                 } else {
                     $word1[]       = '/' . preg_quote($v[0], '/') . '(?!([^<]*>)|([^<]*<\/a>))/is';
                     $word2[]       = $v[0];
                     $replacement[] = '<a href="'.$v[1].'" target="_blank" class="keylink">'.$v[0].'</a>';
                 }
             }

             if($replacenum != '')
             {
                 $txt = preg_replace($word1, $replacement, $txt, $replacenum);
             } else {
                 $txt = str_replace($word2, $replacement, $txt);
             }
         }

         return $txt;
     }