我的 laravel 查询只返回数据库中的最后一条记录

Question

我正在为一个网站做一个搜索条件，我面临的问题是，如果在数据库中我有多个同名驱动程序，我的查询只返回它找到的最后一条记录， 首先，我从用户那里获取输入，然后在一个名为 drivers 的表中搜索包含与他输入的输入相同的记录，代码：

if(!empty($name)||!empty($policynum)||!empty($platenum)||!empty($platecode)) // ** if one of name or policy# or platenum or platecode  is set ** //
{
$query = DB::table('drivers');
if(!empty($name))
$query -> where('driverName',$name);
if(!empty($policynum))
$query -> where('policyNumber',$policynum);
if(!empty($platenum))
$query -> where('plateNumber',$platenum);
if(!empty($platecode))
$query -> where('plateCode',$platecode);

$result = $query->get();
 $result=json_encode($result,true);
 $result=json_decode($result,true);
 }                                // --- end of if 4 inputs set --- //

在我得到司机之后，我在司机数据库中有一个名为事故id的属性，所以现在我必须转到事故数据库表，并搜索id与事故id相同的事故，代码：

if(count($result)>0 && empty($expname))   // if result array returns >0 results and exp-name empty //

{
for($x=0;$x<count($result);$x++)
$accident= accident::where('id',$result[$x]['accidentId'])
->get(); 
return $accident; 
}

所以我使用 for 循环遍历我从驱动程序表中获得的所有结果，以查看驱动程序表中的任何结果是否在事故表中具有相同的 id，如果发现我想获取所有事故行，并且返回它，我把它放在一个表格中，如下所示：

 <tr ng-repeat="accident in accidents" > <!-- -->
                <td>{{accident.accidentRecord}}</td>
                <td>{{accident.expertId}}</td>
                <td>{{accident.address}}</td>
                <td>{{accident.date}} --  -- {{accident.time}}</td>
                <td>{{accident.completedDate}}</td>

如果需要的话还有意外的js代码：

$scope.search=function(accident)
{
  $http({
      method:'GET',
      url:'getAccident',
      params: {accident:accident}
  })
      .success(function(data){
          $scope.accidents=data;
          console.log(data);
      })
      .error(function(err){
          console.log(err);
      })
};

但该表仅显示我的数据库中具有相同 id 的最后一行，而不是所有行，有人可以帮忙吗？

php 函数输出（$accident）：

[[{"id":1,"accidentFloor":"","accidentRecord":"rexord test","address":"haret hreik","location":"no location","re​​gion": "","同事":"","policeMan":"","roadDirection":"","roadType":"","roadNumbers":"","roadWidth":"","date":" 2017-04-12","time":"16:28:29","vision":"","weatherCondition":"","expertId":1,"accidentGenerationNumber":"2017-04-1216: 28:291","completedDate":"","freeDescription":"","created_at":"2017-04-12 16:28:29","updated_at":"2017-04-12 16:28: 29","deleted_at":null}],[{"id":1,"accidentFloor":"","accidentRecord":"rexord test","address":"haret hreik","location":"no location","re​​gion":"","colleague":"","policeMan":"","roadDirection":"","roadType":"","roadNumbers":"","roadWidth":" ","date":"2017-04-12","time":"16:28:29","vision":"","weatherCondition":"","expertId":1,"accidentGenerationNumber": "2017-04-1216:28:291","completedDate":"","freeDescription":"","created_at":"2017-04-12 16:28:29","updated_at":"2017- 04-12 16:28:29","deleted_at":null}],[{"id":1,"accidentFloor":"","accidentR ecord":"rexord test","address":"haret hreik","location":"no location","re​​gion":"","colleague":"","policeMan":"","roadDirection" :"","roadType":"","roadNumbers":"","roadWidth":"","date":"2017-04-12","time":"16:28:29"," vision":"","weatherCondition":"","expertId":1,"accidentGenerationNumber":"2017-04-1216:28:291","completedDate":"","freeDescription":""," created_at":"2017-04-12 16:28:29","updated_at":"2017-04-12 16:28:29","deleted_at":null}],[{"id":3," accidentFloor":"","accidentRecord":"bir al abed","address":"borj","location":"33.8591245,35.5110078","re​​gion":"","colleague":"","policeMan ":"","roadDirection":"","roadType":"\u0645\u0646\u0639\u0637\u0641","roadNumbers":"2","roadWidth":"","date":"2017 -05-01","time":"13:21:26","vision":"","weatherCondition":"","expertId":1,"accidentGenerationNumber":"2017-05-0113:21 :261","completedDate":"","freeDescription":"","created_at":"2017-05-01 13:21:26","updated_at":"2017-05-01 13:21:26 ","deleted_at":null}]]

控制台输出：

(4) [数组(1), 数组(1), 数组(1), 数组(1)]
0 ： 数组(1)
1 ： 数组(1)
2 ： 数组(1)
3 ： 数组(1)
长度 ： 4
原型 ： 数组(0)

Answer 1

你的 for 循环

for($x=0;$x<count($result);$x++)
$accident= accident::where('id',$result[$x]['accidentId'])
->get(); 

一遍又一遍地重写同一个$accident变量。因此，您始终只能在变量中获得最后一条记录。
将 if 条件和循环更改为：

$accidents = [];
if(count($result)>0 && empty($expname))   // if result array returns >0 results and exp-name empty //
{
    for($x=0;$x<count($result);$x++)
        $accidents[] = accident::where('id',$result[$x]['accidentId'])->get(); 
    return $accidents; 
}

$accidents 包含所有事故数据。