---
title: "Breaking: #63784 - Visibility and type of DataHandler->exclude_array"
manual: "TYPO3 Core Changelog"
version: "main"
permalink: "https://docs.typo3.org/permalink/changelog:breaking-63784"
source: "Changelog/7.2/Breaking-63784-DataHandlerExcludeArray.rst"
typo3-version: "7.2"
typo3-major: 7
type: "breaking"
issue: 63784
forge: "https://forge.typo3.org/issues/63784"
tags: ["PHP-API", "Backend"]
rendered: "2026-09-28T19:48:07+00:00"
---

# Breaking: #63784 - Visibility and type of DataHandler->exclude_array {#breaking-63784}

See [forge#63784](https://forge.typo3.org/issues/63784)

## Description {#description}

The internal but formerly public property DataHandler->exclude_array is replaced by
the protected property DataHandler->excludedTablesAndFields, which contains the
combination of excluded table and field as key instead. This improves performance
especially for bulk editing since many in_array()-checks can be avoided.

## Impact {#impact}

Extensions using the DataHandler (former TCEMain) and changing the (former public)
exclude_array to change access to tables and fields cannot do so anymore. Users need
to have their access-rights set properly instead.

## Affected installations {#affected-installations}

Installations using extensions that read or write the undocumented array exclude_array.

## Migration {#migration}

Remove code accessing DataHandler->exclude_array and configure the BE-User properly.