PayPal DOnate Button: Hidden note

Question

I have paypal donate button and I wanna send hidden note with it. How can I add it?

Thanks

Answer 1

PayPal has documentation on advanced donate buttons.

Step 5. could be for you:

Add advanced variables to the HTML code of your payment button (optional).

If you are familiar with the HTML programming and the advanced HTML variables supported by Website Payments Standard payment buttons, you can enter them here. Select the checkbox, and then enter the variables in the text box that appears below it.

Enter any advanced HTML variables in the following, name/value-pair format:

variableName=allowableValue

On a side note, connecting your Forum's user ID with the real name you get from a PayPal donation could be a privacy issue, even a legal problem in some jurisdictions. I'm quite sure it would be one here in Germany, even though the users who donate to you will probably not mind you knowing who they are.