Warning: Cannot use a scalar value as an array in... SessionManager.php on line 492

Question

now I have an error in Magento 2 that shows this error:

There has been an error processing your request

Warning: Cannot use a scalar value as an array in /home/web/domains/web.com/public_html/vendor/magento/framework/Session/SessionManager.php on line 492

Do you know how to solve this? I use Magento 2.3.5

Answer 1

Its a bug just change the line 492 with this

do you see this line

Replace this

protected function _getHosts()
    {
        return $_SESSION[self::HOST_KEY] ?? [];
    }

with this

protected function _getHosts()
    {
        
       return isset($_SESSION[self::HOST_KEY]) ? [$_SESSION[self::HOST_KEY]] : [];

    }