diff --git a/application/admin/controller/Addon.php b/application/admin/controller/Addon.php
index 8fc7a8861e65db83e92e61338528aae5e1151eba..a713cc0aab0289ff8a7d59dcdf4d3b28d0d865b1 100644
--- a/application/admin/controller/Addon.php
+++ b/application/admin/controller/Addon.php
@@ -3,7 +3,6 @@
 namespace app\admin\controller;
 
 use app\common\controller\Backend;
-use fast\Http;
 use think\addons\AddonException;
 use think\addons\Service;
 use think\Cache;
@@ -36,7 +35,7 @@ class Addon extends Backend
     public function index()
     {
         $addons = get_addon_list();
-        foreach ($addons as $k => &$v) {
+        foreach ($addons as &$v) {
             $config = get_addon_config($v['name']);
             $v['config'] = $config ? 1 : 0;
             $v['url'] = str_replace($this->request->server('SCRIPT_NAME'), '', $v['url']);
@@ -50,7 +49,7 @@ class Addon extends Backend
      */
     public function config($name = null)
     {
-        $name = $name ? $name : $this->request->get("name");
+        $name = $name ?: $this->request->get("name");
         if (!$name) {
             $this->error(__('Parameter %s can not be empty', 'name'));
         }
@@ -65,7 +64,7 @@ class Addon extends Backend
         if ($this->request->isPost()) {
             $params = $this->request->post("row/a", [], 'trim');
             if ($params) {
-                foreach ($config as $k => &$v) {
+                foreach ($config as &$v) {
                     if (isset($params[$v['name']])) {
                         if ($v['type'] == 'array') {
                             $params[$v['name']] = is_array($params[$v['name']]) ? $params[$v['name']] : (array)json_decode($params[$v['name']], true);
@@ -179,7 +178,7 @@ class Addon extends Backend
             if ($tables) {
                 $prefix = Config::get('database.prefix');
                 //删除插件关联表
-                foreach ($tables as $index => $table) {
+                foreach ($tables as $table) {
                     //忽略非插件标识的表名
                     if (!preg_match("/^{$prefix}{$name}/", $table)) {
                         continue;
@@ -331,7 +330,7 @@ class Addon extends Backend
         $filter = (array)json_decode($filter, true);
         $addons = get_addon_list();
         $list = [];
-        foreach ($addons as $k => $v) {
+        foreach ($addons as $v) {
             if ($search && stripos($v['name'], $search) === false && stripos($v['title'], $search) === false && stripos($v['intro'], $search) === false) {
                 continue;
             }
@@ -448,7 +447,7 @@ class Addon extends Backend
 
             }
             $rows = $json['rows'] ?? [];
-            foreach ($rows as $index => $row) {
+            foreach ($rows as $row) {
                 if (!isset($row['name'])) {
                     continue;
                 }
diff --git a/application/admin/controller/Ajax.php b/application/admin/controller/Ajax.php
index df8f8b82e1330ebaff8eedbc48c64624b9dfbf06..4c90906020de46aae439e371c8b04e2a49a4cc01 100644
--- a/application/admin/controller/Ajax.php
+++ b/application/admin/controller/Ajax.php
@@ -6,7 +6,6 @@ use app\admin\model\AdminLog;
 use app\common\controller\Backend;
 use app\common\exception\UploadException;
 use app\common\library\Upload;
-use fast\Random;
 use think\addons\Service;
 use think\Cache;
 use think\Config;
@@ -14,7 +13,6 @@ use think\Db;
 use think\Lang;
 use think\Loader;
 use think\Response;
-use think\Validate;
 
 /**
  * Ajax异步请求接口
@@ -231,7 +229,6 @@ class Ajax extends Backend
         $type = $this->request->get('type', '');
         $pid = $this->request->get('pid', '');
         $where = ['status' => 'normal'];
-        $categorylist = null;
         if ($pid || $pid === '0') {
             $where['pid'] = $pid;
         }
@@ -258,7 +255,6 @@ class Ajax extends Backend
             $city = $this->request->get('city');
         }
         $where = ['pid' => 0, 'level' => 1];
-        $provincelist = null;
         if ($province !== null) {
             $where['pid'] = $province;
             $where['level'] = 2;
@@ -277,7 +273,7 @@ class Ajax extends Backend
     public function icon()
     {
         $suffix = $this->request->request("suffix");
-        $suffix = $suffix ? $suffix : "FILE";
+        $suffix = $suffix ?: "FILE";
         $data = build_suffix_image($suffix);
         $header = ['Content-Type' => 'image/svg+xml'];
         $offset = 30 * 60 * 60 * 24; // 缓存一个月
diff --git a/application/admin/controller/Category.php b/application/admin/controller/Category.php
index c9294ed84ad68d1232f5d930a96d425b94c95b0c..79bc3aad24e47f9fe9c4421f9eddbc1901b8f953 100644
--- a/application/admin/controller/Category.php
+++ b/application/admin/controller/Category.php
@@ -16,7 +16,7 @@ class Category extends Backend
 {
 
     /**
-     * @var \app\common\model\Category
+     * @var CategoryModel
      */
     protected $model = null;
     protected $categorylist = [];
@@ -31,7 +31,7 @@ class Category extends Backend
         $tree->init(collection($this->model->order('weigh desc,id desc')->select())->toArray(), 'pid');
         $this->categorylist = $tree->getTreeList($tree->getTreeArray(0), 'name');
         $categorydata = [0 => ['type' => 'all', 'name' => __('None')]];
-        foreach ($this->categorylist as $k => $v) {
+        foreach ($this->categorylist as $v) {
             $categorydata[$v['id']] = $v;
         }
         $typeList = CategoryModel::getTypeList();
@@ -55,7 +55,7 @@ class Category extends Backend
             //构造父类select列表选项数据
             $list = [];
 
-            foreach ($this->categorylist as $k => $v) {
+            foreach ($this->categorylist as $v) {
                 if ($search) {
                     if ($v['type'] == $type && stripos($v['name'], $search) !== false || stripos($v['nickname'], $search) !== false) {
                         if ($type == "all" || $type == null) {
@@ -114,7 +114,7 @@ class Category extends Backend
                 $params = $this->preExcludeFields($params);
 
                 if ($params['pid'] != $row['pid']) {
-                    $childrenIds = Tree::instance()->init(collection(\app\common\model\Category::select())->toArray())->getChildrenIds($row['id'], true);
+                    $childrenIds = Tree::instance()->init(collection(CategoryModel::select())->toArray())->getChildrenIds($row['id'], true);
                     if (in_array($params['pid'], $childrenIds)) {
                         $this->error(__('Can not change the parent to child or itself'));
                     }
diff --git a/application/admin/controller/Dashboard.php b/application/admin/controller/Dashboard.php
index 2dd2e065d950e6d1ee2bd55df94b5eaae519efcd..6bb2b78a5146caa559de42e6f0a6750db81611e6 100644
--- a/application/admin/controller/Dashboard.php
+++ b/application/admin/controller/Dashboard.php
@@ -40,7 +40,7 @@ class Dashboard extends Backend
             $time += 86400;
         }
         $userlist = array_fill_keys($column, 0);
-        foreach ($joinlist as $k => $v) {
+        foreach ($joinlist as $v) {
             $userlist[$v['join_date']] = $v['nums'];
         }
 
@@ -48,7 +48,7 @@ class Dashboard extends Backend
         $addonList = get_addon_list();
         $totalworkingaddon = 0;
         $totaladdon = count($addonList);
-        foreach ($addonList as $index => $item) {
+        foreach ($addonList as $item) {
             if ($item['state']) {
                 $totalworkingaddon += 1;
             }
diff --git a/application/admin/controller/Index.php b/application/admin/controller/Index.php
index dc3509b7bd3a2ebdc361ae689183e0cad94bf3b2..2a494ad6926f4f237c632abc7860f7b72fb1a329 100644
--- a/application/admin/controller/Index.php
+++ b/application/admin/controller/Index.php
@@ -109,7 +109,7 @@ class Index extends Backend
                 $this->success(__('Login successful'), $url, ['url' => $url, 'id' => $this->auth->id, 'username' => $username, 'avatar' => $this->auth->avatar]);
             } else {
                 $msg = $this->auth->getError();
-                $msg = $msg ? $msg : __('Username or password is incorrect');
+                $msg = $msg ?: __('Username or password is incorrect');
                 $this->error($msg, $url, ['token' => $this->request->token()]);
             }
         }
diff --git a/application/admin/controller/auth/Admin.php b/application/admin/controller/auth/Admin.php
index 85f8fb4940032515f5098545ef877cfe1c9eed7a..2f5f276bfe1a40876882444e94e3c67ed488530f 100644
--- a/application/admin/controller/auth/Admin.php
+++ b/application/admin/controller/auth/Admin.php
@@ -42,16 +42,16 @@ class Admin extends Backend
         $groupdata = [];
         if ($this->auth->isSuperAdmin()) {
             $result = Tree::instance()->getTreeList(Tree::instance()->getTreeArray(0));
-            foreach ($result as $k => $v) {
+            foreach ($result as $v) {
                 $groupdata[$v['id']] = $v['name'];
             }
         } else {
             $result = [];
             $groups = $this->auth->getGroups();
-            foreach ($groups as $m => $n) {
+            foreach ($groups as $n) {
                 $childlist = Tree::instance()->getTreeList(Tree::instance()->getTreeArray($n['id']));
                 $temp = [];
-                foreach ($childlist as $k => $v) {
+                foreach ($childlist as $v) {
                     $temp[$v['id']] = $v['name'];
                 }
                 $result[__($n['name'])] = $temp;
@@ -83,13 +83,13 @@ class Admin extends Backend
                 ->select();
 
             $adminGroupName = [];
-            foreach ($authGroupList as $k => $v) {
+            foreach ($authGroupList as $v) {
                 if (isset($groupName[$v['group_id']])) {
                     $adminGroupName[$v['uid']][$v['group_id']] = $groupName[$v['group_id']];
                 }
             }
             $groups = $this->auth->getGroups();
-            foreach ($groups as $m => $n) {
+            foreach ($groups as $n) {
                 $adminGroupName[$this->auth->id][$n['id']] = $n['name'];
             }
             list($where, $sort, $order, $offset, $limit) = $this->buildparams();
@@ -101,8 +101,8 @@ class Admin extends Backend
                 ->order($sort, $order)
                 ->paginate($limit);
 
-            foreach ($list as $k => &$v) {
-                $groups = isset($adminGroupName[$v['id']]) ? $adminGroupName[$v['id']] : [];
+            foreach ($list as &$v) {
+                $groups = $adminGroupName[$v['id']] ?? [];
                 $v['groups'] = implode(',', array_keys($groups));
                 $v['groups_text'] = implode(',', array_values($groups));
             }
@@ -227,7 +227,7 @@ class Admin extends Backend
         }
         $grouplist = $this->auth->getGroups($row['id']);
         $groupids = [];
-        foreach ($grouplist as $k => $v) {
+        foreach ($grouplist as $v) {
             $groupids[] = $v['id'];
         }
         $this->view->assign("row", $row);
@@ -243,7 +243,7 @@ class Admin extends Backend
         if (!$this->request->isPost()) {
             $this->error(__("Invalid parameters"));
         }
-        $ids = $ids ? $ids : $this->request->post("ids");
+        $ids = $ids ?: $this->request->post("ids");
         if ($ids) {
             $ids = array_intersect($this->childrenAdminIds, array_filter(explode(',', $ids)));
             // 避免越权删除管理员
@@ -253,7 +253,7 @@ class Admin extends Backend
             })->select();
             if ($adminList) {
                 $deleteIds = [];
-                foreach ($adminList as $k => $v) {
+                foreach ($adminList as $v) {
                     $deleteIds[] = $v->id;
                 }
                 $deleteIds = array_values(array_diff($deleteIds, [$this->auth->id]));
diff --git a/application/admin/controller/auth/Adminlog.php b/application/admin/controller/auth/Adminlog.php
index 67ec10b1ff85b4c6c5b89e6445a190481bd6e304..28402c3b9354e2e91cf72684ba240d9bf41a0e52 100644
--- a/application/admin/controller/auth/Adminlog.php
+++ b/application/admin/controller/auth/Adminlog.php
@@ -2,7 +2,6 @@
 
 namespace app\admin\controller\auth;
 
-use app\admin\model\AuthGroup;
 use app\common\controller\Backend;
 
 /**
@@ -100,7 +99,7 @@ class Adminlog extends Backend
         if (!$this->request->isPost()) {
             $this->error(__("Invalid parameters"));
         }
-        $ids = $ids ? $ids : $this->request->post("ids");
+        $ids = $ids ?: $this->request->post("ids");
         if ($ids) {
             $isSuperAdmin = $this->auth->isSuperAdmin();
             $childrenAdminIds = $this->childrenAdminIds;
diff --git a/application/admin/controller/auth/Group.php b/application/admin/controller/auth/Group.php
index be4c2c62ba728496e39a2d892144ef85a63d16bd..615451bfa56f837d7f7ee29430cde8c059eb82f8 100644
--- a/application/admin/controller/auth/Group.php
+++ b/application/admin/controller/auth/Group.php
@@ -3,7 +3,6 @@
 namespace app\admin\controller\auth;
 
 use app\admin\model\AuthGroup;
-use app\admin\model\AuthGroupAccess;
 use app\common\controller\Backend;
 use fast\Tree;
 use think\Db;
@@ -19,7 +18,7 @@ class Group extends Backend
 {
 
     /**
-     * @var \app\admin\model\AuthGroup
+     * @var AuthGroup
      */
     protected $model = null;
     //当前登录管理员所有子组别
@@ -59,7 +58,7 @@ class Group extends Backend
             $groupList = $tree->getTreeList($tree->getTreeArray(0));
         }
         $groupName = [];
-        foreach ($groupList as $k => $v) {
+        foreach ($groupList as $v) {
             $groupName[$v['id']] = $v['name'];
         }
 
@@ -191,7 +190,7 @@ class Group extends Backend
         if (!$this->request->isPost()) {
             $this->error(__("Invalid parameters"));
         }
-        $ids = $ids ? $ids : $this->request->post("ids");
+        $ids = $ids ?: $this->request->post("ids");
         if ($ids) {
             $ids = explode(',', $ids);
             $grouplist = $this->auth->getGroups();
@@ -215,7 +214,6 @@ class Group extends Backend
                 $groupone = $this->model->get(['pid' => $v['id']]);
                 if ($groupone) {
                     $ids = array_diff($ids, [$v['id']]);
-                    continue;
                 }
             }
             if (!$ids) {
@@ -257,7 +255,7 @@ class Group extends Backend
             $currentGroupModel = $model->get($id);
         }
         if (($pid || $parentGroupModel) && (!$id || $currentGroupModel)) {
-            $id = $id ? $id : null;
+            $id = $id ?: null;
             $ruleList = collection(model('AuthRule')->order('weigh', 'desc')->order('id', 'asc')->select())->toArray();
             //读取父类角色所有节点列表
             $parentRuleList = [];
@@ -265,7 +263,7 @@ class Group extends Backend
                 $parentRuleList = $ruleList;
             } else {
                 $parentRuleIds = explode(',', $parentGroupModel->rules);
-                foreach ($ruleList as $k => $v) {
+                foreach ($ruleList as $v) {
                     if (in_array($v['id'], $parentRuleIds)) {
                         $parentRuleList[] = $v;
                     }
@@ -289,7 +287,7 @@ class Group extends Backend
             if (!$id || !in_array($pid, $this->childrenGroupIds) || !in_array($pid, $groupTree->getChildrenIds($id, true))) {
                 $parentRuleList = $ruleTree->getTreeList($ruleTree->getTreeArray(0), 'name');
                 $hasChildrens = [];
-                foreach ($parentRuleList as $k => $v) {
+                foreach ($parentRuleList as $v) {
                     if ($v['haschild']) {
                         $hasChildrens[] = $v['id'];
                     }
@@ -306,7 +304,7 @@ class Group extends Backend
                         continue;
                     }
                     $state = array('selected' => in_array($v['id'], $currentRuleIds) && !in_array($v['id'], $hasChildrens));
-                    $nodeList[] = array('id' => $v['id'], 'parent' => $v['pid'] ? $v['pid'] : '#', 'text' => __($v['title']), 'type' => 'menu', 'state' => $state);
+                    $nodeList[] = array('id' => $v['id'], 'parent' => $v['pid'] ?: '#', 'text' => __($v['title']), 'type' => 'menu', 'state' => $state);
                 }
                 $this->success('', null, $nodeList);
             } else {
diff --git a/application/admin/controller/auth/Rule.php b/application/admin/controller/auth/Rule.php
index fc706fa785c9bda37fbef8cf33f5b73232a509a9..16f9eeb2988e806e1700f4c05786ccfcc1cb5142 100644
--- a/application/admin/controller/auth/Rule.php
+++ b/application/admin/controller/auth/Rule.php
@@ -6,8 +6,6 @@ use app\admin\model\AuthRule;
 use app\common\controller\Backend;
 use fast\Tree;
 use think\Cache;
-use think\db\Query;
-use think\exception\HttpResponseException;
 
 /**
  * 规则管理
@@ -19,7 +17,7 @@ class Rule extends Backend
 {
 
     /**
-     * @var \app\admin\model\AuthRule
+     * @var AuthRule
      */
     protected $model = null;
     protected $rulelist = [];
@@ -34,14 +32,14 @@ class Rule extends Backend
         $this->model = model('AuthRule');
         // 必须将结果集转换为数组
         $ruleList = \think\Db::name("auth_rule")->field('type,condition,remark,menutype,extend,pinyin,py,createtime,updatetime', true)->order('weigh DESC,id ASC')->select();
-        foreach ($ruleList as $k => &$v) {
+        foreach ($ruleList as &$v) {
             $v['title'] = __($v['title']);
         }
         unset($v);
         Tree::instance()->init($ruleList)->icon = ['    ', '    ', '    '];
         $this->rulelist = Tree::instance()->getTreeList(Tree::instance()->getTreeArray(0), 'title');
         $ruledata = [0 => __('None')];
-        foreach ($this->rulelist as $k => &$v) {
+        foreach ($this->rulelist as &$v) {
             if (!$v['ismenu']) {
                 continue;
             }
@@ -141,10 +139,10 @@ class Rule extends Backend
         if (!$this->request->isPost()) {
             $this->error(__("Invalid parameters"));
         }
-        $ids = $ids ? $ids : $this->request->post("ids");
+        $ids = $ids ?: $this->request->post("ids");
         if ($ids) {
             $delIds = [];
-            foreach (explode(',', $ids) as $k => $v) {
+            foreach (explode(',', $ids) as $v) {
                 $delIds = array_merge($delIds, Tree::instance()->getChildrenIds($v, true));
             }
             $delIds = array_unique($delIds);
diff --git a/application/admin/controller/general/Attachment.php b/application/admin/controller/general/Attachment.php
index 4493921990f8b1a288c258905641e5a6d8f28a62..9e98d9cde6c334f897ff6f1a79b5cfa9556ec92a 100644
--- a/application/admin/controller/general/Attachment.php
+++ b/application/admin/controller/general/Attachment.php
@@ -66,7 +66,7 @@ class Attachment extends Backend
                 ->paginate($limit);
 
             $cdnurl = preg_replace("/\/(\w+)\.php$/i", '', $this->request->root(true));
-            foreach ($list as $k => &$v) {
+            foreach ($list as &$v) {
                 $v['fullurl'] = ($v['storage'] == 'local' ? $cdnurl : $this->view->config['upload']['cdnurl']) . $v['url'];
             }
             unset($v);
@@ -111,7 +111,7 @@ class Attachment extends Backend
         if (!$this->request->isPost()) {
             $this->error(__("Invalid parameters"));
         }
-        $ids = $ids ? $ids : $this->request->post("ids");
+        $ids = $ids ?: $this->request->post("ids");
         if ($ids) {
             \think\Hook::add('upload_delete', function ($params) {
                 if ($params['storage'] == 'local') {
diff --git a/application/admin/controller/general/Config.php b/application/admin/controller/general/Config.php
index 5dac56c91049fa2a303e6895cf829d283601c6cc..347e774a273eae52f4ff5656917cc66f0e67c036 100644
--- a/application/admin/controller/general/Config.php
+++ b/application/admin/controller/general/Config.php
@@ -5,7 +5,6 @@ namespace app\admin\controller\general;
 use app\common\controller\Backend;
 use app\common\library\Email;
 use app\common\model\Config as ConfigModel;
-use think\Cache;
 use think\Db;
 use think\Exception;
 use think\Validate;
@@ -20,7 +19,7 @@ class Config extends Backend
 {
 
     /**
-     * @var \app\common\model\Config
+     * @var ConfigModel
      */
     protected $model = null;
     protected $noNeedRight = ['check', 'rulelist', 'selectpage', 'get_fields_list'];
@@ -62,7 +61,7 @@ class Config extends Backend
             $value['content'] = json_decode($value['content'], true);
             if (in_array($value['name'], ['categorytype', 'configgroup', 'attachmentcategory'])) {
                 $dictValue = (array)json_decode($value['value'], true);
-                foreach ($dictValue as $index => &$item) {
+                foreach ($dictValue as &$item) {
                     $item = __($item);
                 }
                 unset($item);
@@ -76,8 +75,8 @@ class Config extends Backend
             $siteList[$v['group']]['list'][] = $value;
         }
         $index = 0;
-        foreach ($siteList as $k => &$v) {
-            $v['active'] = !$index ? true : false;
+        foreach ($siteList as &$v) {
+            $v['active'] = !$index;
             $index++;
         }
         $this->view->assign('siteList', $siteList);
@@ -222,7 +221,7 @@ class Config extends Backend
         $keyValue = $this->request->request("keyValue", "");
 
         $keyValueArr = array_filter(explode(',', $keyValue));
-        $regexList = \app\common\model\Config::getRegexList();
+        $regexList = ConfigModel::getRegexList();
         $list = [];
         foreach ($regexList as $k => $v) {
             if ($keyValueArr) {
@@ -268,7 +267,7 @@ class Config extends Backend
     public function selectpage()
     {
         $id = $this->request->get("id/d");
-        $config = \app\common\model\Config::get($id);
+        $config = ConfigModel::get($id);
         if (!$config) {
             $this->error(__('Invalid parameters'));
         }
diff --git a/application/admin/controller/general/Profile.php b/application/admin/controller/general/Profile.php
index aa5fab9aaa3e6d20f464c15a966cfd2abaef44ac..79a8bcc7dcae1a05464e578be025b748ce6ec823 100644
--- a/application/admin/controller/general/Profile.php
+++ b/application/admin/controller/general/Profile.php
@@ -78,6 +78,5 @@ class Profile extends Backend
             }
             $this->error();
         }
-        return;
     }
 }
diff --git a/application/admin/controller/user/Rule.php b/application/admin/controller/user/Rule.php
index 9302dfec245ffe2845ff09f9475862a5e463bc3e..724a2079d862329f283f794e35ab23889e63676b 100644
--- a/application/admin/controller/user/Rule.php
+++ b/application/admin/controller/user/Rule.php
@@ -27,7 +27,7 @@ class Rule extends Backend
         $this->view->assign("statusList", $this->model->getStatusList());
         // 必须将结果集转换为数组
         $ruleList = collection($this->model->order('weigh', 'desc')->select())->toArray();
-        foreach ($ruleList as $k => &$v) {
+        foreach ($ruleList as &$v) {
             $v['title'] = __($v['title']);
             $v['remark'] = __($v['remark']);
         }
@@ -35,7 +35,7 @@ class Rule extends Backend
         Tree::instance()->init($ruleList)->icon = ['    ', '    ', '    '];
         $this->rulelist = Tree::instance()->getTreeList(Tree::instance()->getTreeArray(0), 'title');
         $ruledata = [0 => __('None')];
-        foreach ($this->rulelist as $k => &$v) {
+        foreach ($this->rulelist as &$v) {
             if (!$v['ismenu']) {
                 continue;
             }
@@ -90,10 +90,10 @@ class Rule extends Backend
         if (!$this->request->isPost()) {
             $this->error(__("Invalid parameters"));
         }
-        $ids = $ids ? $ids : $this->request->post("ids");
+        $ids = $ids ?: $this->request->post("ids");
         if ($ids) {
             $delIds = [];
-            foreach (explode(',', $ids) as $k => $v) {
+            foreach (explode(',', $ids) as $v) {
                 $delIds = array_merge($delIds, Tree::instance()->getChildrenIds($v, true));
             }
             $delIds = array_unique($delIds);
diff --git a/application/admin/controller/user/User.php b/application/admin/controller/user/User.php
index 94828e4f7cf28f0220c101ad174aba122a611820..e74a88eec0cad06c480e18b4d92fadce72af3aa9 100644
--- a/application/admin/controller/user/User.php
+++ b/application/admin/controller/user/User.php
@@ -2,6 +2,7 @@
 
 namespace app\admin\controller\user;
 
+use app\admin\model\UserGroup;
 use app\common\controller\Backend;
 use app\common\library\Auth;
 
@@ -44,12 +45,12 @@ class User extends Backend
                 ->where($where)
                 ->order($sort, $order)
                 ->paginate($limit);
-            foreach ($list as $k => $v) {
+            foreach ($list as $v) {
                 $v->avatar = $v->avatar ? cdnurl($v->avatar, true) : letter_avatar($v->nickname);
                 $v->hidden(['password', 'salt']);
             }
             $rows = $list->items();
-            addtion($rows, [['field' => 'group_id', 'display' => 'group_name', 'model' => \app\admin\model\UserGroup::class]]);
+            addtion($rows, [['field' => 'group_id', 'display' => 'group_name', 'model' => UserGroup::class]]);
             $result = array("total" => $list->total(), "rows" => $rows);
 
             return json($result);
@@ -81,7 +82,7 @@ class User extends Backend
         if (!$row) {
             $this->error(__('No Results were found'));
         }
-        $this->view->assign('groupList', build_select('row[group_id]', \app\admin\model\UserGroup::column('id,name'), $row['group_id'], ['class' => 'form-control selectpicker']));
+        $this->view->assign('groupList', build_select('row[group_id]', UserGroup::column('id,name'), $row['group_id'], ['class' => 'form-control selectpicker']));
         return parent::edit($ids);
     }
 
@@ -93,7 +94,7 @@ class User extends Backend
         if (!$this->request->isPost()) {
             $this->error(__("Invalid parameters"));
         }
-        $ids = $ids ? $ids : $this->request->post("ids");
+        $ids = $ids ?: $this->request->post("ids");
         $row = $this->model->get($ids);
         $this->modelValidate = true;
         if (!$row) {
diff --git a/application/admin/library/traits/Backend.php b/application/admin/library/traits/Backend.php
index c8f0119e9b8bd860189a8cf75039f63e66579ae3..5de2deffc5c593890b8caffd41a809b1fc74b656 100755
--- a/application/admin/library/traits/Backend.php
+++ b/application/admin/library/traits/Backend.php
@@ -521,7 +521,7 @@ trait Backend
         $database = \think\Config::get('database.database');
         $fieldArr = [];
         $list = db()->query("SELECT COLUMN_NAME,COLUMN_COMMENT FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = ? AND TABLE_SCHEMA = ?", [$table, $database]);
-        foreach ($list as $k => $v) {
+        foreach ($list as $v) {
             if ($importHeadType == 'comment') {
                 $v['COLUMN_COMMENT'] = explode(':', $v['COLUMN_COMMENT'])[0]; //字段备注有:时截取
                 $fieldArr[$v['COLUMN_COMMENT']] = $v['COLUMN_NAME'];
@@ -575,7 +575,7 @@ trait Backend
         try {
             //是否包含admin_id字段
             $has_admin_id = false;
-            foreach ($fieldArr as $name => $key) {
+            foreach ($fieldArr as $key) {
                 if ($key == 'admin_id') {
                     $has_admin_id = true;
                     break;