Laravel 至少一个字段有效

Question

I have an array with two relevant keys where at least one of both shall contain a valid email address.

$data = [
 'mail' => 'firstname.lastname#tld.com',
 'mail2' => 'firstname.lastname@tld.com',
 ...
]

I've tried a validation using the exclude_with method, which works if the mail field is invalid, but mail2 is valid. However, it doesn't vice versa.

$validated = Validator::make($data, [
    'mail' => 'exclude_with:mail|email',
    'mail2' => 'exclude_with:mail2|email',
])->validate();

I could do this easily with other PHP methods or regular expressions, but I wonder if this is archivable with Laravel's validator.

The goal is to get at least one field with a valid email or fail.

Answer 1

Use exclude_unless() in Laravel

It was tested with these two examples. (You can swap array positions too). And removed ->validate() as well

1. One valid and one invalid Email (as per in the question)

    $data = [ 'mail' => 'firstname.lastname#tld.com', // wrong 'mail2' => 'firstname.lastname@tld.com' // correct ]; $validator = Validator::make($data, [ 'mail' => 'exclude_unless:mail2,null|email', 'mail2' => 'exclude_unless:mail,null|email', ]); if ($validator->fails()) { $messages = $validator->messages(); foreach ($messages->all() as $message) { echo $message; } die(); } echo "pass"; die();

   Output was

   

2. Both invalid emails

    $data = [ 'mail' => 'firstname.lastname#tld.com', // wrong 'mail2' => 'firstname.lastname#tld.com' // wrong ]; $validator = Validator::make($data, [ 'mail' => 'exclude_unless:mail2,null|email', 'mail2' => 'exclude_unless:mail,null|email', ]); if ($validator->fails()) { $messages = $validator->messages(); foreach ($messages->all() as $message) { echo $message; } die(); } echo "pass"; die();

   Output

   

---

customize the error message to a standard message such as "At least one Email should be valid" .