是否可以在控制器上将数据存储到变量中？

Question

**trying to pass the data in database into variable and then insert to another table**  

$ query = DB :: table（'students'）-> where（'studno'，$ request-> input（'stud_id'））-> get（）;

如何？

This is student table

and this is attendance table

我想将该行复制到另一个表中，并在其中添加时间

Answer 1

尝试此代码。效果很好，但是您必须指定所有剩余的列

$students = DB::table('students')->where('studno', $request->input('stud_id'))->get();
$data = [];
foreach ($students as $student) {
    $singleData['studno'] = $student->studno;
    $singleData['batch'] = $student->batch;
    ......
    // other column specify yourself
    $data[] = $singleData;
}

if ($data) {
    $isSavedAttendances = DB::table('attendances')->insert($data);
    // $isSavedAttendances must be true or false 
}