Validates whether the input array contains only unique values.
v::unique()->assert([]);
// Validation passes successfully
v::unique()->assert([1, 2, 3]);
// Validation passes successfully
v::unique()->assert([1, 2, 2, 3]);
// → `[1, 2, 2, 3]` must not contain duplicates
v::unique()->assert([1, 2, 3, 1]);
// → `[1, 2, 3, 1]` must not contain duplicates
| Mode | Template |
|---|
default | {{subject}} must not contain duplicates |
inverted | {{subject}} must contain duplicates |
| Placeholder | Description |
|---|
subject | The validated input or the custom validator name (if specified). |
| Version | Description |
|---|
| 2.0.0 | Created |