TYPO3 / TYPO3.CMS

        // scope but to use $GLOBALS['TYPO3_CONF_VARS'] instead.

        // Nevertheless we define it here as global for backwards compatibility.

        global $TYPO3_CONF_VARS;

        foreach ($GLOBALS['TYPO3_LOADED_EXT'] as $_EXTKEY => $extensionInformation) {

            if ((is_array($extensionInformation) || $extensionInformation instanceof \ArrayAccess) && isset($extensionInformation['ext_localconf.php'])) {

                // $_EXTKEY and $_EXTCONF are available in ext_localconf.php

                // and are explicitly set in cached file as well

                $_EXTCONF = $GLOBALS['TYPO3_CONF_VARS']['EXT']['extConf'][$_EXTKEY] ?? null;

                require $extensionInformation['ext_localconf.php'];

            }

        }

    }

    /**

        global $PAGES_TYPES, $TBE_STYLES;

        global $_EXTKEY;

        // Load each ext_tables.php file of loaded extensions

        foreach ($GLOBALS['TYPO3_LOADED_EXT'] as $_EXTKEY => $extensionInformation) {

            if ((is_array($extensionInformation) || $extensionInformation instanceof \ArrayAccess) && !empty($extensionInformation['ext_tables.php'])) {

                // $_EXTKEY and $_EXTCONF are available in ext_tables.php

                // and are explicitly set in cached file as well

                $_EXTCONF = $GLOBALS['TYPO3_CONF_VARS']['EXT']['extConf'][$_EXTKEY] ?? null;

                require $extensionInformation['ext_tables.php'];

            }

        }

    }

    /**