respect-validation/docs/validators/Max.md
Alexandre Gomes Gaigalas bcc60ec035 Allow empty values in iterables for All, Each, Max, Min
Now empty values are again allowed in FilteredArray-style
validators.

To solve the issue with negation, a Result attribute was
added to signal indeciseveness (when a result cannot be
reliably inverted). On such cases, we consider that result
to be valid.

For example, `v::not(v::min(v::equals(10)))` says "The
lowest value of the iterable input should not be equal 10".

If the input is empty, we cannot decide whether its minimum
is equal to 10 or not, so the validator essentially becomes
a null-op.

Users that want to ensure these validators have a valid
decidable target must use it in combination with `Length`
or other similar validators to achieve the same result.
2026-01-30 21:27:16 +00:00

2.2 KiB

Max

  • Max(Validator $validator)

Validates the maximum value of the input against a given validator.

v::max(v::equals(30))->assert([10, 20, 30]);
// Validation passes successfully

v::max(v::between('e', 'g'))->assert(['b', 'd', 'f']);
// Validation passes successfully

v::max(v::greaterThan(new DateTime('today')))
        ->assert([new DateTime('yesterday'), new DateTime('tomorrow')]);
// Validation passes successfully

v::max(v::greaterThan(15))->assert([4, 8, 12]);
// → The maximum of `[4, 8, 12]` must be greater than 15

Note

This validator will pass if the input is empty. Use Length with [GreaterThan][GreaterThan.md] to perform a stricter check:

v::max(v::equals(10))->assert([]);
// Validation passes successfully

v::length(v::greaterThan(0))->max(v::equals(10))->assert([]);
// → The length of `[]` must be greater than 0

Templates

Max::TEMPLATE_STANDARD

Mode Template
default The maximum of
inverted The maximum of

Template as prefix

The template serves as a prefix to the template of the inner validator.

Template placeholders

Placeholder Description
subject The validated input or the custom validator name (if specified).

Categorization

  • Comparisons
  • Transformations

Changelog

Version Description
3.0.0 Became a transformation
2.0.0 Became always inclusive
1.0.0 Became inclusive by default
0.3.9 Created

See Also