Error: Argument #1 is not an array

I also get this same error.

I got the same error and got rid of it by changing the subscription.module at line#514...:

      $headers = array(t('type'), t('title'), t('operations'));
      	$subrows = array_merge($subrowsn, $subrowsb, $subrowst);

to

      $headers = array(t('type'), t('title'), t('operations'));
      	if (!is_array($subrowsn)) $subrowsn=array();
      	if (!is_array($subrowsb)) $subrowsb=array();
      	if (!is_array($subrowst)) $subrowst=array();
      	$subrows = array_merge($subrowsn, $subrowsb, $subrowst);

just like Bernd, who has it done with the similar array problem (http://drupal.org/node/24151).

I do not know, if there will be later any trouble.. but for the moment, it seems to work.

greets, Shezz

Thanks!

This problem is caused by the fact that the subscriptions_page() function in subscriptions.module does not initialize the arrays.

In PHP 5 the array_merge() function requires the arguements to be arrays.

Because the variables have not been initialised, then they may be unset when the array_merge function is called. As they are unset they are not arrays. This generates the warning.

To fix:

function subscriptions_page() {
  // Initialize the array variables
  $subrowsn = array();
  $subrowsb = array();
  $subrowst = array();

  // Rest of function....
}

after Initializing the array variables it worked fine with me.

I'm testing this code and will commit shortly if I have no problems.

I've committed these changes.