Fatal error: Unsupported operand types in /var/www/drupal/includes/common.inc on line 1416

Hi,

after I installed the piwik module (http://drupal.org/project/piwik), I get this error :

Fatal error: Unsupported operand types in /var/www/drupal/includes/common.inc on line 1416

When piwik is activated, I can't access my website due this error. If I deactivate piwik, I can access to the website.

The problem comes from this code:

function url($path = NULL, $options = array()) {
  // Merge in defaults.
  $options += array(
    'fragment' => '',
    'query' => '',
    'absolute' => FALSE,
    'alias' => FALSE,
    'prefix' => ''
  );

When url() is called like this :

  url($path, NULL);

Then $option is null and php can't do $options += array() cause it's like NULL+= array()

I search on the web and find here a possible solution : http://www.bekirdag.com/en/drupal/commoninc_fatal_error_problem_on_line_...

The solution was to change

$options += array(
     'fragment' => '',
     'query' => '',
     'absolute' => FALSE,
     'alias' => FALSE,
     'prefix' => ''
   );

in

    $options['fragment'] = "";
    $options['query'] = "";
    $options['absolute'] = FALSE;
    $options['alias'] = FALSE;
    $options['prefix'] = "";

but that's not the same cause with the concatenation when for example $option['fragment'] has already a value the value will be keep, and with the new code the value will change.

That produces bugs, for example, I can't run completely the script update.php. With this solution after the step "Select updates" I click on update and it goes to the first step, it make no update...

Maybe I have a solution but I'm sure if it's correct. I just suggest to add this code

if (!isset($options)) $options = array();

With the code there is no Fatal error anymore and I can make an update.

Maybe can someone tell me if my solution is ok or not.