优化新增推广员员时手机号错误问题

Application/Admin/Controller/PromoteController.class.php

@@ -233,9 +233,15 @@ class PromoteController extends ThinkController
             if ($this->accountExist($account)) {
                 $this->error('该账号已存在');
             }
-            $res = M('promote', 'tab_')->where(['mobile_phone' => $mobile_phone])->field('id')->find();
-            if ($res) {
-                $this->error('该手机号已存在');
+            if(!empty($mobile_phone)){
+                //判断手机格式
+                if (!preg_match("/^1[3456789]{1}\d{9}$/", $mobile_phone)) {
+                    $this->error('手机格式错误');
+                }
+                $res = M('promote', 'tab_')->where(['mobile_phone' => $mobile_phone])->field('id')->find();
+                if ($res) {
+                    $this->error('该手机号已存在');
+                }
             }
             $company_belong = $_REQUEST['company_belong'] ?? 0;
             $company_relation = $_REQUEST['company_relation'] ?? 0;