StringValidator

Use StringValidator for names, titles, descriptions, and other text values.

Create a rule

Rule::string(string $field): StringValidator

The name is used in messages. The property name is the key used in the DTO and returned errors.

Methods

Method	Description
`min(int	float $value)`
`max(int	float $value)`
`length(int $min, int $max)`	Set both length limits.
`required(bool $required = true)`	Mark the field as required.
`optional()`	Allow `null` or an empty value.
`validateField(mixed $value)`	Return the first error or `null`.
`validateFieldAll(mixed $value)`	Return every applicable error.

Example

use Fynix\Rule;

$validator = Rule::string('displayName')
    ->length(2, 60)
    ->required();

$error = $validator->validateField('A');

String validation rejects non-string values, HTML tag content, and values outside the configured range. See the validator overview for inherited methods and error behavior.