Laravel - 如何用相对格式验证日期？

Question

PHP defines the relative formats and Laravel doesn't seen to have an available validation rule for that. For example:

/**
 * Get the validation rules that apply to the request.
 *
 * @return array
 */
public function rules()
{
    return [
        'created-at-from' => 'relative_format',
        'created-at-until' => 'nullable|relative_format|gte:created-at-from'
    ];
}

How can we validate those formats?

UPDATE

What I'm using now:

Create a rule class.

php artisan make:rule RelativeFormat

Put the logic.

/**
 * Determine if the validation rule passes.
 *
 * @param  string  $attribute
 * @param  mixed  $value
 * @return bool
 */
public function passes($attribute, $value)
{
    return (bool) strtotime($value);
}

And validates:

/**
 * Get the validation rules that apply to the request.
 *
 * @return array
 */
public function rules()
{
    return [
        'created-at-from' => [new RelativeFormat],
        'created-at-until' => ['nullable', new RelativeFormat]
    ];
}

Answer 1

You can just create your own validation rule:

Validator::extend('relative_format', function($attribute, $value, $parameters)
{
    return (bool) strtotime($value);
});

And add it to your AppServiceProvider.