[PHP 7.1] How to fix the «Cannot use a scalar value as an array in Magento/Framework/Session/SessionManager.php on line 437» bug?

dmitry_fedyuk (Dmitrii Fediuk) December 16, 2016, 5:26pm 1

Locate the line:

github.com

magento/magento2/blob/2.1.3/lib/internal/Magento/Framework/Session/SessionManager.php#L449-L449


return isset($_SESSION[self::HOST_KEY]) ? $_SESSION[self::HOST_KEY] : [];

Replace it with the following one:

return isset($_SESSION[self::HOST_KEY]) && $_SESSION[self::HOST_KEY] ? $_SESSION[self::HOST_KEY] : [];

dmitry_fedyuk (Dmitrii Fediuk) December 30, 2016, 11:45am 2

See also:

dmitry_fedyuk (Dmitrii Fediuk) May 3, 2017, 4:14pm 3

The current Magento 2.2 development branch becomes to support PHP 7.1.