I have a similar issue, seems like my paypal form skips notify_url completely, here is the code: < form id="buy-premium" action="https://www.paypal.com/cgi-bin/webscr" method="post"> <input type="hidden" name="cmd" value="_xclick"> <input type="hidden" name="business" value="<?= $sm['config']['paypal']; ?>"> <input type="hidden" name="item_name" id="payment-name3" value="<?= $sm['config']['name']; ?> Premium"> <input type="hidden" name="currency_code" value="<?= $sm['config']['currency']; ?>"> <input type="hidden" name="amount" id="payment-amount3" value=""> <input type="hidden" name="custom" id="payment-custom3" value=""> < input type="hidden" name="notify_url" value="ipnpremium.php"> <input type="hidden" name="return" value="<?= $sm['config']['site_url']; ?>"> < button data-premium-send="30" data-price="1"> pay</button> </form>
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