Online PHP editor | refs for Cr3tZ

<?php $GLOBALS['TYPO3_CONF_VARS']['SYS']['caching']['cacheConfigurations']['test'] ??= []; $GLOBALS['TYPO3_CONF_VARS']['SYS']['caching']['cacheConfigurations']['test']['frontend'] ??= 'some frontend'; $GLOBALS['TYPO3_CONF_VARS']['SYS']['caching']['cacheConfigurations']['test']['backend'] ??= 'some backend'; $GLOBALS['TYPO3_CONF_VARS']['SYS']['caching']['cacheConfigurations']['test']['options'] ??= ['defaultLifetime' => 0]; var_dump($GLOBALS['TYPO3_CONF_VARS']);