数据验证方式之一：

use Illuminate\Support\Facades\Validator;

if($request->isMethod('post')){

$data = $request->all();

$rules = [

'lesson_name' => 'required|unique:stream,stream_name',

'lesson_duration' => ['required','regex:/^[1-9][0-9]{0,1}$/'],

];

$notices = [

//提示信息

'lesson_name.required' => 'xxx必填',

'lesson_name.unique' => 'xxx不能重复',

'lesson_duration.required' => 'xx必填',

'lesson_duration.regex' => '是一个个位或十位数字',

];

//制作校验

$validator = Validator::make($data,$rules,$notices);

if($validator->passes()){

Stream::create($data);

return ['success'=>true];

}else{

$errorinfo=collect($validator->messages())->implode('0','|');

return ['success'=>false,'errorinfo'=>$errorinfo];

}

}