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<?php
declare(strict_types=1);
namespace StellarWP\Validation\Rules;
use Closure; use StellarWP\Validation\Contracts\ValidatesOnFrontEnd; use StellarWP\Validation\Contracts\ValidationRule;
class Required implements ValidationRule, ValidatesOnFrontEnd { /** * @inheritDoc */ public static function id(): string { return 'required'; }
/** * @inheritDoc */ public static function fromString(string $options = null): ValidationRule { return new self(); }
/** * @inheritDoc */ public function __invoke($value, Closure $fail, string $key, array $values) { if (!isset($values[$key]) || $value === null || $value === '') { $fail(sprintf(__('%s is required', '%TEXTDOMAIN%'), '{field}')); } }
/** * @inheritDoc */ public function serializeOption(): bool { return true; } }
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