03-rules_less-than.md

LessThan

Validates that a value is less than another value. Can compare between strings, numbers and dates.

LessThan(
    mixed $constraint,
    ?string $message = null
);

Basic Usage

Validator::lessThan(20)->validate(10); // true
Validator::lessThan(20)->validate(20); // false

Validator::lessThan(2.5)->validate(1.5); // true
Validator::lessThan(2.5)->validate(2.5); // false

Validator::lessThan('beta')->validate('alpha'); // true
Validator::lessThan('beta')->validate('beta'); // false

Validator::lessThan(new DateTime('today'))->validate(new DateTime('yesterday')); // true
Validator::lessThan(new DateTime('today'))->validate(new DateTime('today')); // false

Note

String comparison is case-sensitive, meaning that comparing "hello" with "Hello" is different. Check strcmp for more information.

Note

An UnexpectedValueException will be thrown when trying to compare incomparable values, like a string with an int.

Options

constraint

type: mixed required

It defines the comparison/maximum value. Can be a string, int, float or DateTimeInterface object.

message

type: ?string default: The {{ name }} value should be less than {{ constraint }}.

Message that will be shown if the value is not less than the constraint value.

The following parameters are available:

Parameter	Description
{{ value }}	The current invalid value
{{ name }}	Name of the invalid value
{{ constraint }}	The comparison value

Changelog

• 0.1.0 Created