Laravel 验证检查数组大小的最小值和最大值
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Laravel Validation check array size min and max
提问by Happy Coder
I just need to check in Laravel validation that an array contains minimum 2 values and maximum 4 values. Is there any default validation rule can be used for this ? The sizeelement checks for exact size match and the other rules likes minand maxare for strings, digits and file size.
我只需要在 Laravel 验证中检查一个数组包含最少 2 个值和最多 4 个值。是否有任何默认验证规则可用于此？该size元素检查精确的大小匹配，其他规则喜欢min和max用于字符串、数字和文件大小。
回答by piscator
You can use between.
.
https://laravel.com/docs/5.2/validation#rule-between
您可以使用between. .
https://laravel.com/docs/5.2/validation#rule-between
For example:
例如：
'users' => 'required|array|between:2,4'
It is not explicitly stated in the docs, but it works with arrays, just like size.
它在文档中没有明确说明，但它适用于数组，就像size.
For more details, read validating array lengths in Laravel
有关更多详细信息，请阅读在 Laravel 中验证数组长度
回答by Isaac Limón
A little bit late:
有点晚了：
return [
"ticket_photo" => ["required","array","min:2","max:4"], // validate an array contains minimum 2 elements and maximum 4
"ticket_photo.*" => ["required","mimes:jpeg,jpg,png,gif"], // and each element must be a jpeg or jpg or png or gif file
];
laravel 5.6
拉拉维尔 5.6
