Why paypal sandbox not redirecting? - php

Question

<form action="https://www.sandbox.paypal.com/cgi-bin/webscr" method="POST">
<input type="hidden" name="invoice" id="" value="<?php echo $pay_data['order_id']; ?>" />
<input type="hidden" name="cmd" value="_xclick">
<input type="hidden" name="business" value="mymail#gmail.com">
<input type="hidden" name="item_name" value="suite number">
<input type="hidden" name="item_number" value="1">
<input type="hidden" name="amount" value="<?php echo $pay_data['amount']; ?>">
<input type="hidden" name="no_shipping" value="1">
<input type="hidden" name="no_note" value="1">
<input type="hidden" name="currency_code" value="USD">
<input type="hidden" name="lc" value="US">
<input type="hidden" name="bn" value="PP-BuyNowBF">
<input type="hidden" name="return" value="<?php echo base_url()."/home/paypal_subscripton"; ?>">
<input type="hidden" name="cancel_return" value="<?php echo base_url(); ?>">
<input type="hidden" name="notify_url" value="<?php echo base_url(); ?>" />
<input type="submit" value="Donate!" />
</form>
i payed successfully with this code. but page is not redirecting to my website? what is the problem with my code?
amount: 1
bn: PP-BuyNowBF
business: mymail#gmail.com
cancel_return: http://localhost/ebin/Spacelance/
cmd: _xclick
currency_code: USD
invoice: 50d04dd5ab186
item_name: suite number
item_number: 1
lc: US
no_note: 1
no_shipping: 1
notify_url: http://mydomain/ebin/Spacelance/
return: http://mydomain/ebin/Spacelance/home/paypal_subscripton
this is post params to paypal(from firebug)

Answer 1

If you're using the button as it looks like you are, Paypal only redirects users who have a Paypal account. This is what their documentation says:
Note: If you have turned on Auto Return and have chosen to turn on PayPal Account Optional for new users, a new user will not be automatically directed back to your website, but will be given the option to return.
So what I did, was create a page where the I would display instructions to click on the "return to website" link after the transaction is done. Though this is a very inefficient way of taking care of it.
source: www.sandbox.paypal.com/?cmd=p/pop/express_return_learn_more