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<?php
 // Include the paypal library
 include_once ('Paypal.php');
 
 // Create an instance of the paypal library
 $myPaypal = new Paypal();
 
 // Specify your paypal email
 $myPaypal->addField('business', 'YOUR_PAYPAL_EMAIL');
 
 // Specify the currency
 $myPaypal->addField('currency_code', 'USD');
 
 // Specify the url where paypal will send the user on success/failure
 $myPaypal->addField('return', 'http://YOUR_HOST/payment/paypal_success.php');
 $myPaypal->addField('cancel_return', 'http://YOUR_HOST/payment/paypal_failure.php');
 
 // Specify the url where paypal will send the IPN
 $myPaypal->addField('notify_url', 'http://YOUR_HOST/payment/paypal_ipn.php');
 
 // Specify the product information
 $myPaypal->addField('item_name', 'T-Shirt');
 $myPaypal->addField('amount', '9.99');
 $myPaypal->addField('item_number', '001');
 
 // Specify any custom value
 $myPaypal->addField('custom', 'muri-khao');
 
 // Enable test mode if needed
 $myPaypal->enableTestMode();
 
 // Let's start the train!
 $myPaypal->submitPayment();
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