Breaking: #102151 - XML prologue always added in flexArray2Xml()

See forge#102151


The second argument $addPrologue = false on \TYPO3\CMS\Core\Configuration\FlexForm\FlexFormTools->flexArray2Xml() has been dropped: When imploding a FlexForm array to an XML string using this method, the "XML prologue" is always added.


This should have no impact for consumers of this method. The counterpart method \TYPO3\CMS\Core\Utility\GeneralUtility::xml2array() happily deals with this.

Affected installations

Instances with extensions using FlexFormTools->flexArray2Xml() can drop the second argument. The extension scanner will find usages with a weak match.

Since this is a detail method of the TYPO3 Core FlexForm handling, not often handled by extensions themselves, few instances will be affected in the first place.


No data migration needed, PHP consumers should drop the second argument when calling the method.