Judex is a PHP validator.
The best way to install is to use the composer by command:
composer require newclass/judex
composer install
use Judex\Validator\EmailValidator;
use Judex\Validator\NotEmptyValidator;
use Judex\ValidatorManager;
$validator=new ValidatorManager();
$validator->addValidator(new EmailValidator());
$validator->addValidator(new NotEmptyValidator());
$result=$validator->validate('test@newclass.pl');
$valid=$result->isValid(); //return true
$result=$validator->validate('test.newclass.pl');
$valid=$result->isValid(); //return false
$errors=$result->getErrors(); //return ['Value is not valid format email.']
$result=$validator->validate('');
$valid=$result->isValid(); //return false
$errors=$result->getErrors(); //return ['Value can\'t be empty.']