Subset
February 3, 2026 · View on GitHub
Subset(mixed[] $superset)
Validates whether the input is a subset of a given value.
v::subset([1, 2, 3])->assert([1, 2]);
// Validation passes successfully
v::subset([1, 2])->assert([1, 2, 3]);
// → `[1, 2, 3]` must be subset of `[1, 2]`
Templates
Subset::TEMPLATE_STANDARD
| Mode | Template |
|---|---|
default | {{subject}} must be subset of {{superset}} |
inverted | {{subject}} must not be subset of {{superset}} |
Template placeholders
| Placeholder | Description |
|---|---|
subject | The validated input or the custom validator name (if specified). |
superset |
Categorization
- Arrays
Changelog
| Version | Description |
|---|---|
| 2.0.0 | Created |