[TYPO3-german] Re: Kein BE Login nach Update auf 8.7

[Nils Hodyas]

Hallo und danke, 
nein, alles grün im InstalTool.

Das php-error log gibt folgendes aus:

[28-Aug-2017 09:31:41 Europe/Berlin] PHP Fatal error:  Uncaught TypeError: strpos() expects parameter 1 to be string, null given in /homepages/30/d563453326/htdocs/gamma/typo3_src-8.7.4/typo3/sysext/core/Classes/Database/ConnectionPool.php:152
Stack trace:
#0 /homepages/30/d563453326/htdocs/gamma/typo3_src-8.7.4/typo3/sysext/core/Classes/Database/ConnectionPool.php(152): strpos(NULL, 'pdo_')
#1 /homepages/30/d563453326/htdocs/gamma/typo3_src-8.7.4/typo3/sysext/core/Classes/Database/ConnectionPool.php(132): TYPO3\CMS\Core\Database\ConnectionPool->getDatabaseConnection(Array)
#2 /homepages/30/d563453326/htdocs/gamma/typo3_src-8.7.4/typo3/sysext/core/Classes/Database/ConnectionPool.php(83): TYPO3\CMS\Core\Database\ConnectionPool->getConnectionByName('Default')
#3 /homepages/30/d563453326/htdocs/gamma/typo3_src-8.7.4/typo3/sysext/core/Classes/Error/AbstractExceptionHandler.php(95): TYPO3\CMS\Core\Database\ConnectionPool->getConnectionForTable('sys_log')
#4 /homepages/30/d563453326/htdocs/gamma/typo3_src-8.7.4/typo3/sysext/core/Classes/Error/AbstractExceptionHandler.p in /homepages/30/d563453326/htdocs/gamma/typo3_src-8.7.4/typo3/sysext/core/Classes/Database/ConnectionPool.php on line 152

Die entsprechende Zeile lautet:
protected function getDatabaseConnection(array $connectionParams): Connection
    {
    if (strpos($connectionParams['driver'], 'pdo_') === 0) {
            $connectionParams['driverOptions'][\PDO::ATTR_STRINGIFY_FETCHES] = true;
        }

Extensions mach ich mal aus, da ist aber kaum was installiert auf der Seite.