增加跟踪链接nofollow规则

application/controllers/welcome.php

@@ -195,13 +195,41 @@ class Welcome extends CI_Controller {
         // ));
     }
 
-    public function count_redirect_nofllow() {
+    public function count_redirect_nofollow() {
         $include_redirece_info =
             $this->Information_model->search_all_text('.htm&t=78002', 2000);
         echo 'count: '.count($include_redirece_info).'<br/>';
+        $nofollow_count = 0;
+        $htm_doc = new DOMDocument();
+        $htm_doc->encoding='UTF-8';
+        libxml_use_internal_errors(true);
+        $htm_doc->strictErrorChecking = false;
         foreach ($include_redirece_info as $info) {
-            echo '('.$info->ic_id.','.$info->is_id.')'.$info->ic_url.' | '.$info->ic_title.'<br/>';
+            $htm_doc->loadHTML(
+                mb_convert_encoding($info->ic_content, 'HTML-ENTITIES', 'UTF-8'));
+            $htm_doc->normalizeDocument();
+            $anchor_list = $htm_doc->getElementsByTagName('a');
+            foreach ($anchor_list as $anchor) {
+                $a_href = $anchor->getAttribute('href');
+                $a_rel = $anchor->getAttribute('rel');
+
+                $match_result = array();
+                preg_match('/.*.htm&t=78002$/', $a_href, $match_result);
+                $result_count = count($match_result);
+                if ($result_count > 0 && $a_rel != 'nofollow') {
+                    $nofollow_count = $nofollow_count + 1;
+                    echo $info->ic_url.' | '.'('.$info->ic_id.','.$info->is_id.')'.'<br/>';
+                    echo 'a.href: '.$a_href.'; rel: '.$a_rel.'<br>';
+                    var_dump($match_result);
+                }
+                // if ($result_count == 2) {
+                    // $result = '//www.chinahighlights.com'.$match_result[1];
+                    // $anchor->setAttribute('href', $result);
+                    // echo $result.'<br>';
+                // }
+            }
         }
+        echo 'nofollow_count: '.$nofollow_count.'<br/>';
     }
 
     public function count_http_of_href() {