使用laravel验证规则检查用户的年龄 [英] Check user's age with laravel validation rules

问题描述

如何在注册时检查用户的年龄?我希望将最低年龄设置为13岁.我询问用户的出生日期，当我验证其他凭据时，我想检查一下它们是否确实是13岁以上.

How can I check the age of a user upon registration? I want to set the minimum age to be 13 years old. I ask for the user's date of birth and when I validate the other credentials, I want to check that they are in fact 13+.

我的用户模型摘录如下:

An excerpt from my User model looks like this:

$rules = [
            'name'                  => 'required|alpha|min:1',
            'email'                 => 'required|email|unique:users',
            'dob'                   => 'required|date'
         ];

如何检查输入的日期是13年前或更早?

How can I check that the date entered is 13 years ago or more?

我发现我可以使用 Laravel文档中的before:yyy-mm-dd规则，就像这样:

I have seen that I can use the before:yyy-mm-dd rule from the Laravel Docs, like so:

$rules = [
            'name'                  => 'required|alpha|min:1',
            'email'                 => 'required|email|unique:users',
            'dob'                   => 'required|date|before:2001-04-15'
         ];

1. 如何计算值?
2. 如何在规则中使用该值?

推荐答案

RMcLeod的答案还可以，但是我建议您将其提取为自定义规则:

RMcLeod answer is OK, but I'd suggest you extracting this as a custom rule:

Validator::extend('olderThan', function($attribute, $value, $parameters)
{
    $minAge = ( ! empty($parameters)) ? (int) $parameters[0] : 13;
    return (new DateTime)->diff(new DateTime($value))->y >= $minAge;

    // or the same using Carbon:
    // return Carbon\Carbon::now()->diff(new Carbon\Carbon($value))->y >= $minAge;
});

通过这种方式，您可以在任何喜欢的年龄使用该规则:

This way you can use the rule for any age you like:

$rules = ['dob' => 'olderThan']; // checks for 13 years as a default age
$rules = ['dob' => 'olderThan:15']; // checks for 15 years etc

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