laravel request 验证

$this->validate($request, [
   'title' => 'bail|required|string|between:2,32',
   'url' => 'sometimes|url|max:200',
   'picture' => 'nullable|string'
], [
   'title.required' => '标题字段不能为空',
   'title.string' => '标题字段仅支持字符串',
   'title.between' => '标题长度必须介于2-32之间',
   'url.url' => 'URL格式不正确，请输入有效的URL',
   'url.max' => 'URL长度不能超过200',
]);

门面模式

Validator::make($request->all(), [
   'title' => 'bail|required|string|between:2,32',
   'url' => 'sometimes|url|max:200',
   'picture' => 'nullable|string'
], [
   'title.required' => '标题字段不能为空',
   'title.string' => '标题字段仅支持字符串',
   'title.between' => '标题长度必须介于2-32之间',
   'url.url' => 'URL格式不正确，请输入有效的URL',
   'url.max' => 'URL长度不能超过200',
])->validate();