---
title: "Type.isArray ViewHelper <be:type.isArray>"
manual: "Fluid ViewHelper Reference"
version: "main"
permalink: "https://docs.typo3.org/permalink/t3viewhelper:typo3-backend-type-isarray@main"
source: "Backend/Type/IsArray.rst"
modified: "2026-09-17T05:12:06+00:00"
---

# Type.isArray ViewHelper `<be:type.isArray>`

> [!NOTE]
> This ViewHelper is not available by default.
>
> [Import its namespace](https://docs.typo3.org/m/typo3/reference-coreapi/main/en-us/ApiOverview/Fluid/UsingFluidInTypo3.html#fluid-syntax-viewhelpers-import-namespaces)
> `{namespace be=TYPO3\CMS\Backend\ViewHelpers\}` in the Fluid file or
> `xmlns:be="http://typo3.org/ns/TYPO3/CMS/Backend/ViewHelpers/"` in the opening HTML tag.

> [!WARNING]
> **Internal**
>
> This ViewHelper is marked as internal. It is subject to be changed without notice. Use at your own risk.

ViewHelper to check whether the given value is an array.

Go to the source code of this ViewHelper: [Type\\IsArrayViewHelper.php (GitHub)](https://github.com/TYPO3/typo3/blob/main/typo3/sysext/backend/Classes/ViewHelpers/Type/IsArrayViewHelper.php).

## Arguments of the `<be:type.isArray>` ViewHelper

-   **value**

    -   *Type:* mixed
    -   *Required:* true

    The variable being checked