---
title: "Iban – API-Referenz · Quittio"
description: "IBAN check digit validation (ISO 13616, mod 97-10) without extensions."
canonical_url: "https://quittio.dev/docs/api/Quittio/Core/Validation/Plausibility/Iban"
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---

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[API reference](https://quittio.dev/docs/api) / [Quittio](https://quittio.dev/docs/api/Quittio) \\ [Core](https://quittio.dev/docs/api/Quittio/Core) \\ [Validation](https://quittio.dev/docs/api/Quittio/Core/Validation) \\ [Plausibility](https://quittio.dev/docs/api/Quittio/Core/Validation/Plausibility)

# Iban

final class in quittio/core

`Quittio\Core\Validation\Plausibility\Iban` · [Source](https://github.com/Quittio/quittio/blob/v0.7.1/packages/core/src/Validation/Plausibility/Iban.php#L10)

IBAN check digit validation (ISO 13616, mod 97-10) without extensions.

## Methods \#

| Method | Description |
| --- | --- |
| `::isValid()` | |
| `::mod97()` | Remainder of a number given as alphanumeric string (A = 10 … Z = 35) divided by 97. |
| `::normalize()` | |

### `isValid()`#

```
public static function isValid(string $iban): bool
```

static

| Parameter | Type | Description |
| --- | --- | --- |
| `$iban` | `string` | |

<dl><dt>Returns</dt>
<dd><code>bool</code></dd>
</dl>

### `mod97()`#

```
public static function mod97(string $value): int
```

static

Remainder of a number given as alphanumeric string (A = 10 … Z = 35) divided by 97.

| Parameter | Type | Description |
| --- | --- | --- |
| `$value` | `string` | |

<dl><dt>Returns</dt>
<dd><code>int</code></dd>
</dl>

### `normalize()`#

```
public static function normalize(string $iban): string
```

static

| Parameter | Type | Description |
| --- | --- | --- |
| `$iban` | `string` | |

<dl><dt>Returns</dt>
<dd><code>string</code></dd>
</dl>

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