What is this error?

[hyperlite635]

I'm getting this error after setting up Paypal express:


Warning: array_merge() [function.array-merge]: Argument #1 is not an array in /home/electrp3/public_html/includes/modules/payment/paypalwpp.php on line 1467

Warning: array_merge() [function.array-merge]: Argument #2 is not an array in /home/electrp3/public_html/includes/modules/payment/paypalwpp.php on line 1467

Warning: Cannot modify header information - headers already sent by (output started at /home/electrp3/public_html/includes/modules/payment/paypalwpp.php:1467) in /home/electrp3/public_html/includes/modules/payment/paypalwpp.php on line 1492

Warning: Cannot modify header information - headers already sent by (output started at /home/electrp3/public_html/includes/modules/payment/paypalwpp.php:1467) in /home/electrp3/public_html/includes/functions/functions_general.php on line 44

[DrByte]

Chances are that you are using v1.3.7, which is old code.

Please upgrade to v1.3.7.1 to get the bugfixes related to PayPal and many other features.
Or install the PayPal stuff manually from here:
http://www.zen-cart.com/forum/showthread.php?t=56216

[silentmove1]

I get this error and I have v138... whats wrong?

[bmpt]

i have been getting this message also, can somone tell me what i can do

[DrByte]

If you're using v1.3.7, follow the instructions posted earlier.

If you're using v1.3.8 or v1.3.8a, please post the exact complete error message ... because if it's identical to the one posted earlier, then you're not really using v1.3.8 code.

[bmpt]

I tried upgrading to 1.3.8a and i thought it worked. my error says
Warning: array_merge() [function.array-merge]: Argument #1 is not an array in /home/electrp3/public_html/includes/modules/payment/paypalwpp.php on line 1467

Warning: array_merge() [function.array-merge]: Argument #2 is not an array in /home/electrp3/public_html/includes/modules/payment/paypalwpp.php on line 1467

Warning: Cannot modify header information - headers already sent by (output started at /home/electrp3/public_html/includes/modules/payment/paypalwpp.php:1467) in /home/electrp3/public_html/includes/functions/functions_general.php on line 44
i get this message when i hit the express paypal checkout feature in my cart

can i fix this by reuploading functions_general.php and paypalwpp.php?

[DrByte]

First, functions_general.php has nothing to do with it. Its mention is simply a secondary effect caused by the first error.

Second, how come the error message you just posted contains the same path info as the one by electronic pulse posted by someone else earlier?

It seems you're not reporting the exact error.

Line 1467 in v1.3.8a has nothing to do with any array_merge activities. Thus if you're getting that error, then you're not using v1.3.8a code.

[bmpt]

is this better?

Warning: array_merge() [function.array-merge]: Argument #1 is not an array in /home/bigmoney/public_html/catalog/includes/modules/payment/paypalwpp.php on line 1467

Warning: array_merge() [function.array-merge]: Argument #2 is not an array in /home/bigmoney/public_html/catalog/includes/modules/payment/paypalwpp.php on line 1467

Warning: Cannot modify header information - headers already sent by (output started at /home/bigmoney/public_html/catalog/includes/modules/payment/paypalwpp.php:1467) in /home/bigmoney/public_html/catalog/includes/functions/functions_general.php on line 44

[DrByte]

Well, in the v1.3.8 code, lines 1465-1469 read as follows (note: no mention of any array_merge operation):

      // track one-time charges
      if ($order->products[$i]['onetime_charges'] != 0 ) {
        $onetimeSum += $order->products[$i]['onetime_charges'];
        $onetimeTax += zen_calculate_tax($order->products[$i]['onetime_charges'], $order->products[$i]['tax']);
      }

In v1.3.7, line 1467 reads as shown:

    $this->zcLog('ec_step1 - 2 -submit', print_r(array_merge($return_url, $cancel_url, $options), true));

In v1.3.7.1, lines 1463-1469 read thus:

    // handle discounts such as gift certificates and coupons
    if ($credits_applied > 0) {
      $optionsST['HANDLINGAMT'] -= $creditsApplied;
    }

    // add all one-time charges
    $optionsST['ITEMAMT'] += $onetimeSum;

So, if you're seeing an array_merge() error on line 1467, that tells me that your paypal express checkout module is from v1.3.7.

The v1.3.7 PayPal code had a number of glitches, and several patches were released, culminating in v1.3.7.1.

So, as I stated in my first reply to this issue (above), you need to either apply the patch, or upgrade your site.

If you're going to upgrade your site, you may as well jump to 1.3.8a, as it is the latest as of this writing.

[DrByte]

I tried upgrading to 1.3.8a and i thought it worked.

It seems it didn't. Since you're having v1.3.7 error messages, it means that at least your PHP (and other) files haven't been upgraded thoroughly on your server ... which means your upgrade is incomplete.