2FAuth/app/Rules/IsValidRegex.php

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<?php
namespace App\Rules;
use Closure;
use Illuminate\Contracts\Validation\ValidationRule;
class IsValidRegex implements ValidationRule
{
/**
* Run the validation rule.
*/
public function validate(string $attribute, mixed $value, Closure $fail) : void
{
try {
preg_match('/' . $value . '/', '');
if (preg_last_error() !== PREG_NO_ERROR) {
$fail('validation.IsValidRegex')->translate();
}
}
catch (\Throwable $ex) {
$fail('validation.IsValidRegex')->translate();
}
}
}