[PHP] Laravel框架表单验证操作实例分析

public function create(Request $request){
  if($request->isMethod('POST')){
  //验证通过后继续进行
  //方法1 控制器验证
  $this->validate($request,[
    'Student.name' => 'required|min:2|max:20',
    'Student.age' => 'required|integer',
    'Student.sex' => 'required|integer',
  ],[
    'required'=>':attribute 为必填项',
    'min' => ':attribute 长度不符合要求',
    'integer' => ':attribute 必须是一个整形',
  ],[ 'Student.name' => '姓名',
    'Student.age' => '年龄',
    'Student.sex' => '性别',
  ]);
  //方法2 Validator类验证
  $validator = \Validator::make($request->input(),[
    'Student.name' => 'required|min:2|max:20',
    'Student.age' => 'required|integer',
    'Student.sex' => 'required|integer',
  ],[
    'required'=>':attribute 为必填项',
    'min' => ':attribute 长度不符合要求',
    'integer' => ':attribute 必须是一个整形',
  ],[ 'Student.name' => '姓名',
    'Student.age' => '年龄',
    'Student.sex' => '性别',
  ]);
  if($validator->fails()){
    return redirect()->back()->withErrors($validator)->withInput();
  }
  //如果验证通过，则继续执行下面的代码
  $data = $request->input('Student');
  if(Student::create($data)){
    return redirect('student/index')->with('success','添加成功');
  }else{
    return redirect()->back();
  }
  }
  return view('student.create');
}

protected $fillable = ['name','age'];

return redirect('Student/index')->with('success','添加成功');

@if(Session::has('success'))
<div>
  {{ Session::get('success') }}
</div>
@endif
@if(count($errors))
  <div class="alert alert-danger">
  <ul>
    @foreach($errors->all() as $val)
    <li>{{$val}}</li>
    @endforeach
  </ul>
  </div>
@endif

return redirect()->back()->withErrors($validator)->withInput();

姓名 ：<input type="text" name="Student[name]" value="{{ old('Student')['name'] }}" />
性别 ：
@foreach($student->user_sex() as $ind=>$val)
<input type="radio" name="Student[sex]" value="{{$ind}}" {{ old('Student')['sex']==$ind?'checked':'' }} />{{$val}}
@endforeach