How to validate multiple email in laravel validation? - php

Question

I have done all the things for the validation for the variable in laravel but for emails I got one simple problem.
From doc of Laravel,
'email' => 'required|email'
I got to know this is for only one email address but for like,
email=abc#xyz.com,xyz#abc.com, def#ghi,com
When I send array of the email i still get email is not a valid email.
I have done more like,
'email' => 'required|email|array'
But I still got error. can any body help.
Thanks,

Answer 1

You need to write custom Validator, which will take the array and validate each ofthe emails in array manually. In Laravel 5 Request you can do something like that
public function __construct() {
Validator::extend("emails", function($attribute, $value, $parameters) {
$rules = [
'email' => 'required|email',
];
foreach ($value as $email) {
$data = [
'email' => $email
];
$validator = Validator::make($data, $rules);
if ($validator->fails()) {
return false;
}
}
return true;
});
}
public function rules() {
return [
'email' => 'required|emails'
];
}

Answer 2

In 5.6 or above you can define your validator rule as follows:
'email.*' => 'required|email'
This will expect the email key to be an array of valid email addresses.

Answer 3

We can achieve this without custom validation,We can overridden a method prepareForValidation
protected function prepareForValidation()
{
//Here email we are reciving as comma seperated so we make it array
$this->merge(['email' => explode(',', rtrim($this->email, ','))]);
}
Then above function will call automatically and convert email-ids to array, after that use array validation rule
public function rules()
{
return [
'email.*' => 'required|email'
];
}

Answer 4

Laravel 5.2 introduced array validation and you can easily validate array of emails :)
All you need is exploding the string to array.
https://laravel.com/docs/5.2/validation#validating-arrays

Answer 5

I did it like this. Working good for me.
if email or emails (email1#gmail.com, email2#yahoo.com, email3#gmail.com) are coming from a Form like this following custom validator works. This need to be added to - AppServiceProvider.php - file. And new rule is - 'emails'.
/**
* emails
* Note: this validates multiple emails in coma separated string.
*/
Validator::extend('emails', function ($attribute, $value, $parameters, $validator) {
$emails = explode(",", $value);
foreach ($emails as $k => $v) {
if (isset($v) && $v !== "") {
$temp_email = trim($v);
if (!filter_var($temp_email, FILTER_VALIDATE_EMAIL)) {
return false;
}
}
}
return true;
}, 'Error message - email is not in right format');
And in your controller, it can be used like this:
$this->validate($request, [
'email_txt_area' => 'emails',
]);

Answer 6

If you don't want to override prepareForValidation just because of one rule here's another approach using closures:
$rules = [
'name' => 'required|string|max:255',
'email' => [
'required',
function ($attribute, $value, $fail) {
$emails = array_map('trim', explode(',', $value));
$validator = Validator::make(['emails' => $emails], ['emails.*' => 'required|email']);
if ($validator->fails()) {
$fail('All email addresses must be valid.');
}
},
],
];
Tested with Laravel 9.x