（1/1）ErrorException未定义的索引：ClientController.php中的id（第81行）

Question

我不确定为什么出现此错误。这是ClientController中的方法。

protected function updateOneStudent($parameters) 
{ 
    $studentId = $parameters['id']; 
    return $this- >performPutRequest("https://lumenapi.juandmegon.com/students/{$studentId}", $parameters); 
} 

基本上我试图更新选定的学生。以下是更新表单。

@extends('layouts.master') 

@section('content') 
<form action="{{url('/student/update')}}" method="POST" role="form"> 
    {{ csrf_field() }} 

{{method_field('PUT')}} 
<legend>Create a Student</legend> 
<div class="form-group"> 
    <label for="">Name</label> 
    <input type="text" class="form-control" name="name" value="{{$student->name }}"required="required"> 
</div> 
<div class="form-group"> 
    <label for="">Address</label> 
    <input type="text" class="form-control" name="address" value="{{$student->address }}" required="required"> 
</div> 
<div class="form-group"> 
    <label for="">Phone</label> 
    <input type="text" class="form-control" name="phone" value="{{$student->phone }}" required="required"> 
</div> 
<div class="form-group"> 
    <label for="">Career</label> 
    <select name="career" class="form-control" required="required"> 
    <option>Select a Career</option> 
    <option value="math"{{$student->career == 'math' ? 'selected' : ''}}>Math</option> 
    <option value="physics"{{$student->career == 'physics' ? 'selected' : ''}}>Physics</option> 
    <option value="engineering"{{$student->career == '' ? 'engineering' : ''}}>Engineering</option> 
    </select> 
</div> 
<button type="submit" class="btn btn-primary">Update Student</button> 
</form> 

    @endsection 

Answer 1

我发送的请求是错误的。该错误发生在StudentController中。 我

public function getUpdateStudent() 
{ 
    $students = $this->obtainAllStudents; 
    return view('students.select-student', ['students'=> $students]); 
} 

它本来应该

public function getUpdateStudent() 
{ 
    $students = $this->obtainAllStudents(); 
    return view('students.select-student', ['students'=> $students]); 
} 

我错过了括号调用getUpdateStudent。对不起，我以前没有展示过这个代码。