Examples(e.

Examples(e.g. Unit tests) are provided and are covering all the different aspects of PAYPAL: buy now, subscribe, donation, gift certificate, paypal cart, custom cart.

Comments within source code are sufficient.
The html document(HTML-Variables-for-PayPal-Website-Payments-Standard.htm) about the variables is missing the images.

index.php is missing an else statement(line 4) when index.php is called without ?api='...' parameter and comes up with a notice.

Overall is a good quality code that implements the proposed functionality.

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Thank you for your rating and comments.
An else statement is not needed. When you do not pass "?api=...", default is "buynow" which is in line 3.
Notice comes up when error_reporting(E_ALL).

You can disable warning and notice for your error reporting or you can fix it line 4 as following :
if(isset($_GET['api']) && $_GET['api']) $api = $_GET['api'];

I have also updated this in the repository.

Hi!,

Sorry for my English, I tried the example "Example/thirdpartycart.php" and the value $_REQUEST['txn_id'] always returns a value distinct to value of Paypal, I need to get the value of the Paypal transaction number.

Please, How do I do?

Thanks!