Laravel 动态生成的字段验证答案

【问题标题】：Laravel Dynamically generated field validationLaravel 动态生成的字段验证
【发布时间】：2021-10-30 23:00:03
【问题描述】：

我有一个提交大量图片的表单，假设有 5 张图片。我将它们命名为 img1、img2..、img5。现在我正在一一验证这些字段。

我的验证码

$rules = [
            'image1' => 'required|image|mimes:jpeg,png,jpg,gif,svg|max:3072',
            'image2' => 'image|mimes:jpeg,png,jpg,gif,svg|max:3072',
            'image3' => 'image|mimes:jpeg,png,jpg,gif,svg|max:3072',
            'image4' => 'image|mimes:jpeg,png,jpg,gif,svg|max:3072',
            'image5' => 'image|mimes:jpeg,png,jpg,gif,svg|max:3072',
        ];

$msg = [
            'image1.required' => 'Image is required',
            'image1.image' => 'Please upload an Image for Image ',
            'image1.mimes' => 'Image type should be jpeg or jpg or png or gif or svg',
            'image1.max' => 'Image size should be less than or equal 3MB',
            'image2.image' => 'Please upload an Image for Image ',
            'image2.mimes' => 'Image type should be jpeg or jpg or png or gif or svg',
            'image2.max' => 'Image size should be less than or equal 3MB',
            'image3.image' => 'Please upload an Image for Image ',
            'image3.mimes' => 'Image type should be jpeg or jpg or png or gif or svg',
            'image3.max' => 'Image size should be less than or equal 3MB',
            'image4.image' => 'Please upload an Image for Image ',
            'image4.mimes' => 'Image type should be jpeg or jpg or png or gif or svg',
            'image4.max' => 'Image size should be less than or equal 3MB',
            'image5.image' => 'Please upload an Image for Image ',
            'image5.mimes' => 'Image type should be jpeg or jpg or png or gif or svg',
            'image5.max' => 'Image size should be less than or equal 3MB',
        ];

$this->validate($req, $rules, $msg);

请告诉我是否有更好的方法来做到这一点？ :)

【问题讨论】：

标签： laravel laravel-8 laravel-validation

【解决方案1】：

使用数组代替文件名

Laravel 多文件验证规则。

$rule = ['image.*' => 'required|mimes:jpeg,png,jpg,gif,svg|max:3072'];
$msg = ['image.*.image' => 'Please upload an Image for Image ',
        'image.*.mimes' => 'Image type should be jpeg or jpg or png or gif or svg',
        'image.*.max' => 'Image size should be less than or equal 3MB'];

【讨论】：

【解决方案2】：

你可以在一个数组 $images 中提交所有这些

并进行验证：-

$rules = [
"images"   =>"required|array|min:1",
"images.*" =>"required|image|mimes:jpeg,png,jpg,gif,svg|max:3072"
]

除非你想更改 laravel 的默认验证消息，否则并不需要为每个验证设置消息

【讨论】：

YHA 我真的想要自定义消息，但是如何使用普通的 HTML 表单发送数组？
<input type="file" name="image[]" multiple />