I’ve found the problem. From php.net: mysqli_stmt :: get_result is Available only with mysqlnd. My online environment, unlike my local environment seems to be lacking of mysqlnd! So I guess I’ve to contact my host.
The code below works as expected. BUT if you run openssl_error_string() after the openssl methods it shows error:0E06D06C:configuration file routines:NCONF_get_string:no value which is some notice I have not been able to find documentation on. Further note that according to http://www.php.net/manual/en/function.openssl-error-string.php you could be seeing mis-leading errors as error messages are queued: Be careful when using … Read more
Just run php –ini and look for Loaded Configuration File in the output for the location of php.ini used by your CLI.