php 循环从数据库分页取数据批量修改数据
1 //批量修改email重复 2 public function getEmail() 3 { 4 $this->model = app::get('shop')->model('manage'); 5 //总条数 6 $count = count($this->model->getList('id', [ 'status' => 1, 'type' => 0])); 7 8 $limit = 0; 9 $num = $count / 5;//循环多少次 10 for ($i = 1; $i <= $num; $i++) { 11 $sql = "select * from shop_manage where type = 0 AND status = 1 order by id limit {$limit},5"; 12 $list = app::get('base')->database()->fetchAll($sql); 13 14 foreach ($list as $k => $v) {16 $email = $v['email']; 17 18 $user_id = $v['user_id']; 19 20 21 $email = $user_id . '_cfq_' . $email; 22 23 $result=$this->model->update(['email'=>$email],['user_id'=>$user_id]); 24 25 } 26
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28 29 $limit += 5; 30 } 31 $message = "处理成功!"; 32 return $this->splash('success', null, $message); 33 34 }