Paypal IPN custom variable...?

Discussion in 'PayPal' started by tarponkeith, Jul 13, 2007.

0
  1. #1
    Ok,

    Using Paypal IPN, is it possible to have the paypal server send back a custom variable that I passed to it originally?

    Like, when they use the "buy now" button, I'd like it to send a custom "my_user_id" (or something) field... then when the IPN sends the data back to my server, have it reference the "my_user_id" that I sent it...

    Any ideas?

    Thanks

    I've never used paypal site integration services before, looks interesting...
     
    tarponkeith, Jul 13, 2007 IP
  2. gibex

    gibex Active Member

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    gibex, Jul 13, 2007 IP
  3. KalvinB

    KalvinB Peon

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    #3
    You can set those options up on the PayPal site when you create your buy now button. The button cannot be encrypted.

    
<input type="hidden" name="cmd" value="_xclick">
<input type="hidden" name="business" value="$PAYPAL_EMAIL">
<input type="hidden" name="item_name" value="Clickable Links for '" . $post['post_title'] . "'">
<input type="hidden" name="item_number" value="$PAYPAL_ITEM_A">
<input type="hidden" name="amount" value="$PAYPAL_AMOUNT">
<input type="hidden" name="no_shipping" value="1">
<input type="hidden" name="return" value="$SITE_ROOT/index.php?page=admin&id=" . $post['post_id'] . "">
<input type="hidden" name="no_note" value="1">
<input type="hidden" name="currency_code" value="$PAYPAL_CURRENCY">
<input type="hidden" name="lc" value="US">
<input type="hidden" name="bn" value="PP-BuyNowBF">
[b]<input type="hidden" name="on0" value="press_release_id">
<input type="hidden" name="os0" value='" . $post['post_id'] . "'>[/b]
<input type="image" src="https://$PAYPAL_URL/en_US/i/btn/x-click-but23.gif" border="0" name="submit" alt="Make the links in this press release clickable!">
    Code (markup):
    on# is the name of the custom field
    os# is the value of the custom field

    On the recieving end you reference it using option_selection[#+1]

    So os0 is option_selection1 for a very good reason I'm sure.

    On the site you can set up two options. I'd recommend keeping the bulk of the information in a database and then using the options to keep a unique id to reference the rest of the information stored in the db.
     
    KalvinB, Jul 13, 2007 IP
    tarponkeith likes this.