create custom rule in laravel
<?php
namespace AppRules;
use IlluminateContractsValidationRule;
class Uppercase implements Rule
{
/**
* Determine if the validation rule passes.
*
* @param string $attribute
* @param mixed $value
* @return bool
*/
public function passes($attribute, $value)
{
return strtoupper($value) === $value;
}
/**
* Get the validation error message.
*
* @return string
*/
public function message()
{
return 'The :attribute must be uppercase.';
}
}