Online PHP editor | output for GbBpm

<?php class CorrectStructureValidator implements ValidatorRuleInterface { private string $format = 'Поле должно иметь следующий вид: %s. Вы написали - %s.'; private string $pattern; private string $verbalDescriptionOfPattern; public function __construct(string $pattern, string $verbalDescriptionOfPattern) { $this->pattern = $pattern; $this->verbalDescriptionOfPattern = $verbalDescriptionOfPattern; } public function __invoke(mixed $value): ?ValidationError { $result = preg_match($this->pattern, $value); if (!result) { $errorText = sprintf( $this->format, $this->verbalDescriptionOfPattern, $value ); return new ValidationError($errorText); } else { return null; } } }