ERROR: Unable to verify $_POST vars.

I’m using the Paypal Sandbox and I got the error below.

The payments have gone into the Paypal test accounts alright, but it’s obviously not redirecting to the site.

I doubt it’s an issue with the php ini file (just how do I check that anyway in cPanel?)

Is there a diagnostic process to go thru to find out what the issue is? The info below tells me what to do, but not how to do it.

Thanks

ERROR: Unable to verify $_POST vars.
Please contact Support for assistance.

This is most likely related to an invalid configuration of s2Member, or a problem with server compatibility. If you are the site owner, and you’re absolutely SURE that your configuration is valid, you may want to run some tests on your server, just to be sure $_POST variables are populated, and that your server is able to connect/communicate with your Payment Gateway over an HTTPS connection.

s2Member uses the WP_Http class for remote connections; which will try to use cURL first, and then fall back on the FOPEN method when cURL is not available. On a Windows® server, you may have to disable your cURL extension; and instead, set allow_url_fopen = yes in your php.ini file. The cURL extension (usually) does NOT support SSL connections on a Windows® server.

Hello Mark,

To solve this issue, could you please upload this Server Check script to your root WordPress directory, it was made by Jason to test if your server is OK to run s2Member (and even WordPress).

If it gives you all passed, could you please double-check your custom attribute in your shortcode? Read under Dashboard -› s2Member® -› PayPal® Buttons -› Shortcode Attributes (Explained) -› custom and make sure it’s correct?

If it doesn’t work after that, could you please paste the shortcode you’re using, an tell us the URL of your website (so that we may compare it ourselves).

Thanks!
Hope this helps. :)

Thanks Ed,

the server settings seem to be ok, see http://hotbuttonmarketing.com.au/s2member-server-check-120703.php

The setup is in a sub domain.

Also, the custom attribute looks ok too

[s2Member-PayPal-Button level="1" ccaps="" desc="Online Marketing Ansers Monthly Membership" ps="paypal" lc="" cc="AUD" dg="0" ns="1" custom="answers.hotbuttonmarketing.com.au" ta="0" tp="0" tt="D" ra="29" rp="1" rt="M" rr="1" rrt="" rra="1" image="default" output="button" /]

I suspect it’s one of the Paypal ID/token numbers but there are that many of them it’s head spinning trying to figure out which one it is.

As I said it all seems to be working at the Paypal end, the test purchases are being recorded in the Sandbox account.

It’s just the return to the site that’s at issue. Time to break out the magnifying glass (sigh)

The url is http://answers.hotbuttonmarketing.com.au/would-you/ Scroll to near the bottom to see the buttons. At the moment it’s set to Paypal Sandbox, so if you want to test feel free.

Thanks again

OK,

seems I had the wrong PDT, not sure how that happened.

Fixed it and it seems to be working.

Now I get the default and ugly Thank You message.

Glad you were able to solve the problem. :)