调优

@@ -28,8 +28,13 @@ class AutoMail {
 
         redis()->set('prev_auto_mail_keyword',$filter,86400);
 
-        $q = array_diff($filter,$old);
-        // 差集
+        $t = function ($vs){
+            return array_map(function ($v){
+                return $v[0].":".$v[1];
+            },$vs);
+        };
+        // 找到新增的
+        $q = array_diff($t($filter),$t($old));
         if(!$q){
             return 0;
         }
@@ -38,7 +43,7 @@ class AutoMail {
 
         $not_must = [];
         foreach ($q as $f){
-            list($t,$str) = $f;
+            list($t,$str) = explode(':',$f,2);
             if($t==2){
                 $not_must[] = ["match_phrase"=>["subject"=>$str]];