Step 1
Create a Paypal Sandbox account at https://developer.paypal.com/
Step 2
Now create test accounts for payment system. Take a look at Sandbox menu left-side topSandbox->Test Accounts
create a file where we use
index.php
<?php
// Test Paypal API URL
// Test Paypal API URL
$paypal_url='https://www.sandbox.paypal.com/cgi-bin/webscr';
// Business email ID
// Business email ID
$paypal_id='your_seller_id';
?><h4>Welcome, Guest</h4>
<div class="product"> <div class="name"> Test Payment </div>
<div class="price"> Price:$15 </div>
<div class="price"> Price:$15 </div>
<form action="<?php echo $paypal_url; ?>" method="post" name="frmPayPal1">
<input type="hidden" name="business" value="<?php echo $paypal_id; ?>">
<input type="hidden" name="cmd" value="_xclick">
<input type="hidden" name="item_name" value="Test Payment">
<input type="hidden" name="item_number" value="1">
<input type="hidden" name="credits" value="510">
<input type="hidden" name="userid" value="1">
<input type="hidden" name="amount" value="15">
<input type="hidden" name="cpp_header_image" value="your logo path or any image">
<input type="hidden" name="no_shipping" value="1">
<input type="hidden" name="currency_code" value="USD">
<input type="hidden" name="handling" value="0">
<input type="hidden" name="cancel_return" value="cancel.php">
<input type="hidden" name="return" value="success.php">
<input type="image" src="paypalimage urlor button image" border="0" name="submit"
alt="PayPal"> </form>
</div></div>
success.php
Paypal payment success return file. Getting Paypal argument like item_number. Paypaldatasuccess.php?tx=83437E384950D&st=Completed&amt=10.00&cc=USD&cm=&item_number=1
<?php
$item_no = $_REQUEST['item_number'];
$item_transaction = $_REQUEST['tx']; // Paypal transaction ID
$item_price = $_REQUEST['amt']; // Paypal received amount
$item_currency = $_REQUEST['cc']; // Paypal received currency type
$price = '15.00';
$currency='USD';
//Rechecking the product price and currency details
if($item_price==$price && $item_currency==$currency)
{
echo "<h1>Welcome, Guest</h1>";
echo "<h1>Payment Successful</h1>";
}
else
{
echo "<h1>Payment Failed</h1>";
}
?>
cancel.php
Paypal API cancel_return file.
<?php
echo "<h1>Welcome, Guest</h1>";
echo "<h1>Payment Canceled</h1>";
?>
Step 3
When your web application test payment system workflow is completed. Change the form action development API URLs to original API URLs and give valid $paypal_id seller email id.
$paypal_url='https://www.sandbox.paypal.com/cgi-bin/webscr';
//to
$paypal_url='https://www.paypal.com/cgi-bin/webscr';
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