---
title: "Deprecation: #99615 - GeneralUtility::_GPmerged()"
manual: "TYPO3 Core Changelog"
version: "main"
permalink: "https://docs.typo3.org/permalink/changelog:deprecation-99615-1674056024"
source: "Changelog/12.2/Deprecation-99615-GeneralUtilityGPMerged.rst"
modified: "2026-09-15T10:46:36+00:00"
---

# Deprecation: #99615 - GeneralUtility::\_GPmerged()

See [forge#99615](https://forge.typo3.org/issues/99615)

## Description

The method `\TYPO3\CMS\Core\Utility\GeneralUtility::_GPmerged()` has
been marked as deprecated and should not be used any longer.

Modern code should access `GET` and `POST` data from the PSR-7
`\Psr\Http\Message\ServerRequestInterface`, and should avoid accessing
super-globals `$_GET` and `$_POST` directly. This helps creating
controller classes with a clean architecture. Some
`\TYPO3\CMS\Core\Utility\GeneralUtility` related helper methods like
`_GPmerged()` violate this, using them is considered a technical debt.
They are being phased out.

## Impact

Calling the method will raise a deprecation level log error and will
stop working with TYPO3 v13.

## Affected installations

Instances with extensions using `GeneralUtility::_GPmerged()` are affected.
The extension scanner will find usages with a strong match.

## Migration

`GeneralUtility::_GPmerged()` is a helper method that retrieves
request parameters and returns the value, while `POST` parameters take
precedence over `GET` parameters, if both exist.

The same result can be achieved by retrieving arguments from the request object.
An instance of the PSR-7 `ServerRequestInterface` is handed over to
controllers by TYPO3 Core's PSR-15 `\TYPO3\CMS\Core\Http\RequestHandlerInterface`
and middleware implementations, and is available in various related scopes
like the frontend `\TYPO3\CMS\Frontend\ContentObject\ContentObjectRenderer`.

Typical code:

```php
use TYPO3\CMS\Core\Utility\GeneralUtility;
use TYPO3\CMS\Core\Utility\ArrayUtility;

// Before
$getMergedWithPost = GeneralUtility::_GPmerged('tx_scheduler');

// After
$getMergedWithPost = $request->getQueryParams()['tx_scheduler'];
ArrayUtility::mergeRecursiveWithOverrule($getMergedWithPost, $request->getParsedBody()['tx_scheduler']);
```