respect-validation/docs/validators/IntVal.md
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<!--
SPDX-FileCopyrightText: (c) Respect Project Contributors
SPDX-License-Identifier: MIT
-->
# IntVal
- `IntVal()`
Validates if the input is an integer, allowing leading zeros and other number bases.
```php
v::intVal()->assert('10');
// Validation passes successfully
v::intVal()->assert('089');
// Validation passes successfully
v::intVal()->assert(10);
// Validation passes successfully
v::intVal()->assert(0b101010);
// Validation passes successfully
v::intVal()->assert(0x2a);
// Validation passes successfully
```
This validator will consider as valid any input that PHP can convert to an integer,
but that does not contain non-integer values. That way, one can safely use the
value this validator validates, without having surprises.
```php
v::intVal()->assert(true);
// → `true` must be an integer value
v::intVal()->assert('89a');
// → "89a" must be an integer value
```
Even though PHP can cast the values above as integers, this validator will not
consider them as valid.
## Templates
### `IntVal::TEMPLATE_STANDARD`
| Mode | Template |
| ---------: | :--------------------------------------- |
| `default` | {{subject}} must be an integer value |
| `inverted` | {{subject}} must not be an integer value |
## Template placeholders
| Placeholder | Description |
| ----------- | ---------------------------------------------------------------- |
| `subject` | The validated input or the custom validator name (if specified). |
## Categorization
- Numbers
- Types
## Changelog
| Version | Description |
| ------: | :-------------------------------------------------------- |
| 2.2.4 | Improved support for negative values with trailing zeroes |
| 2.0.14 | Allow leading zeros |
| 1.0.0 | Renamed from `Int` to `IntVal` |
| 0.3.9 | Created as `Int` |
## See Also
- [Decimal](Decimal.md)
- [Digit](Digit.md)
- [Finite](Finite.md)
- [FloatType](FloatType.md)
- [FloatVal](FloatVal.md)
- [Infinite](Infinite.md)
- [IntType](IntType.md)
- [NumericVal](NumericVal.md)