Breaking: #99898 - Continuous array keys from GeneralUtility::intExplode¶
See forge#99898
Description¶
When the method \TYPO3\CMS\Core\Utility\GeneralUtility::intExplode()
is called with the parameter $removeEmptyEntries set to true, the
array keys are now continuous.
Previously, the array had gaps in the keys in the places where empty values were removed. This behavior had been an undocumented side-effect of the implementation. It is now changed to always return an array with continuous integer array keys (i.e., a list) to reduce surprising behavior.
Before this change (TYPO3 v12):
GeneralUtility::intExplode(',', '1,,3', true);
// Result: [0 => 1, 2 => 3]After this change (TYPO3 v13):
GeneralUtility::intExplode(',', '1,,3', true);
// Result: [0 => 1, 1 => 3]Impact¶
Calling GeneralUtility::intExplode() with the parameter
$removeEmptyEntries set to true and relying on gaps in the keys of
the resulting array keys may lead to unexpected results.
Affected installations¶
Custom extensions that rely on the array keys of the result of
GeneralUtility::intExplode() to have gaps in the keys.
Migration¶
Adapt your code to not rely on gaps in the keys anymore.