PHP 简单的事务用法实例+(Exception 错误自定义；抛出：laraval实现）

 1 <?php
 2 
 3 namespace AppHttpControllers;
 4 
 5 use IlluminateHttpRequest;
 6 
 7 use IlluminateSupportFacadesDB;
 8 
 9 
10 class ManayController extends Controller
11 {
12     public function index(){
13 
14         try {
15 
16             DB::beginTransaction();
17 
18             $res1 = DB::table('manay')->where('id', '1')->increment('manay', 200);
19 
20             $res2 = DB::table('manay')->where('id', '2')->decrement('manay', 200);
21 
22             if($res1==true && $res2==true){
23 
24                 DB::commit();
25 
26             }else{
27 
28                 $this->fun();
29 
30             }
31 
32         }catch (Exception $e1){
33 
34               echo "发生错误(代号:". $e1->getCode() . ")";
35 
36               echo $e1->getMessage();
37 
38              DB::rollBack();
39 
40 
41 
42         }
43 
44 
45     }
46 
47     public function fun(){
48 
49          throw new Exception('有错误','300');
50 
51 
52 
53     }
54 
55 
56 
57 }