Blank
February 3, 2026 ยท View on GitHub
Blank()
Validates if the given input is a blank value (null, zeros, empty strings or empty arrays, recursively).
We recommend you to check Comparing empty values for more details.
v::blank()->assert(' ');
// Validation passes successfully
v::blank()->assert(0);
// Validation passes successfully
v::blank()->assert(false);
// Validation passes successfully
v::blank()->assert(['', ' ', '0.0', []]);
// Validation passes successfully
v::blank()->assert(new stdClass());
// Validation passes successfully
It's similar to Falsy, but way stricter.
Templates
Blank::TEMPLATE_STANDARD
| Mode | Template |
|---|---|
default | {{subject}} must be blank |
inverted | {{subject}} must not be blank |
Template placeholders
| Placeholder | Description |
|---|---|
subject | The validated input or the custom validator name (if specified). |
Categorization
- Miscellaneous
Changelog
| Version | Description |
|---|---|
| 3.0.0 | Renamed to Blank and changed the behavior |
| 1.0.0 | Created as NotBlank |