Fatal error: Unsupported operand types

What do you do when you get this problem? Try to view a product, open one, or what?

It tries to change? some variable to an array but it can't.

You can add ddebug_backtrace() right before the += line to get the backtrace printed out right before the error happens. Somehow I managed to configure PHP itself to show a backtrace on errors, but I'm afraid I don't remember how I did that. It might be a particular version I got from WAMP. Edit: I went and looked, and it might be display_startup_errors and/or html_errors in my php.ini file.

same error here only when going to a product that is in a subcategory. does UC support nested product categories?

I just noticed that when I add the product to a top level category that contains no children it works. When I add it to a subcategory it doesn't work. When I add it to a top level category that contains children it doesn't work (even if it is not inside the children). This seems to be a problem with taxonomy and catalog.

I still can't duplicate this. I wonder if it might be because of a difference in PHP version. I haven't had any problems with 5.2.8, but I think 5.3 will work as well.

PHP version 5.2.10 here. I get the error.

I'm not really sure if I am pointing in the right direction, but this seems interesting:

http://bugs.php.net/bug.php?id=49000

It's about 5.2.9 nad up in CLI interactive mode (php -a). Functions in an include that define a function which includes another file...

Found it here:
http://framework.zend.com/issues/browse/ZF-7107%3Bjsessionid=37BAF367BB2...

Same error and php versions seem to match the problem. Might try to downgrade PHP to 5.2.8 or upgrade 5.2.11 and see how it behaves then.

Problem might be variable_get which is in includes/bootstrap.inc.

Good luck!

I've tried it with PHP 5.2.9-1 and I still can't get any errors to show up. I'm starting to think there must be some kind of custom code or something that's using uc_price() the wrong way. I think the thing to do is to try ddebug_backtrace() again, but comment out the lines with the += in them. Stuff will probably break, but not as badly as a fatal error, so you should be able to see the output.

Reduced the priority down to normal since I don't think this is a problem specifically with Ubercart itself. If we can find out what part is interacting badly, we can go from there.

@Island
That would be quite surprising, seeing the code in question below.

function uc_price($price_info, $context, $options = array()) {
  global $user;
  $values = array();

// ......

  // Initialize the options and context.
  $options += array(
    'cache' => variable_get('uc_price_caching', TRUE),
  );

Can't really see any possibility why $options should not be an array. My best bet would be PHP bug and solved in the latest release of PHP.

theme_uc_quotes_products()

That's from a contrib module (uc_quotes, not the uc_quote that is in Ubercart), so I don't know how it works. I bet it needs to be fixed to work with the price API somehow. That's kind of strange, because I thought we had changed uc_currency_format() to be a wrapper for uc_price(). Its function signature wasn't changed, though, so other modules should still be able to use it the same way.

I'm also getting this issue. Any word on a patch for this? Let me know if any more info is required. Thanks.

I'm running D6.14 + UC 6.x-2.2 on PHP 5.2.9 under CentOS, also getting this error on anything hierachical in the product catalog. I've got a client who has to give on-demand quotes for his customers for some products due to limited run/supply costs, so really need to know if a fix is on the way or I have to find a workaround for this feature...

Due to the fact that it flat breaks the site with a WSOD for anything using a hierarchical product catalog, upping it to a "critical" bug...

Confirmed! I've just tried to uncheck "Display products in the catalog in a grid." from

/admin/store/settings/catalog/edit/grid

and when I clicked on "Save configuration" button - this fatal error appeared. Now I can't see my catalog content as stated in #6.

Confirmed this going the other way - I enabled product grid display, and the grid showed up fine. Disabled it again, and get a WSOD when the product listing is being displayed. That narrows it down to something related to the product list vs. grid...

Actually, if $options is passed in and is not an array, this would definitely break, which is the case. I managed to get a backtrace dumped to file before the page crashed, and found that a value of '1' was being passed in list mode, whereas an empty array was passed in grid mode. Appending an array to a number using the += operator will not work...

Also, interestingly enough, the args passed to uc_price() are totally different when the uc_quotes module is enabled vs disabled. I'm attaching all four dumps (grid and list with uc_quotes enabled, and without) - might help someone who is more familiar with the workings of uc_quotes than I am... All were generated from the same catalog page, which was from a hierarchical product catalog.

Also, as a side note - I know that UC2 made some significant API changes that have broken some other modules - any chance this might also be a victim...? After all, uc_quotes hasn't been updated since Feb 2009, and UC2 came out in Oct 2009.

-R

subscribe.

Applying the patch listed here: http://drupal.org/node/492718 fixed it for me, using Ubercart 2.2

I have "fixed" this issue by changing the line 91 (uc_price.inc)

$options += array(

to

$options[] = array(

This is a quick fix only. My bespoke code is passing an array to uc_price but I still had the similar problem as the posts above. I will need to revisit my own module to find the reason later, I just thought I'll share my "hack."

Patch mentioned in #24 above did not work for me. Subscribe.
_{Note to self: e3e}

subscribing

@TwistedLincoln: same here. Applying this patch fixed this error for me too.

patch at #24 did solve the problem for me, too. this issue has been around for more than a year. hopefully the will be an upgrade for this module soon.

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I'm still getting these errors on any catalog taxonomy items clicked. I really like the module, but is it going to be maintained?

Perhaps mine is a different issue? My error reads

Fatal error: Unsupported operand types in /home/mysite/public_html/sites/all/modules/ubercart/uc_store/includes/uc_price.inc on line 85

Line 85 is the last one listed below

  // Initialize the context.
  $context += array(
    'revision' => 'themed',
    'type' => 'amount',
  );