MassPay.php

<?php
// Include required library files.
require_once('includes/config.php');
require_once('includes/paypal.class.php');

// Create PayPal object.
$PayPalConfig = array(
					'Sandbox' => $sandbox,
					'APIUsername' => $api_username,
					'APIPassword' => $api_password,
					'APISignature' => $api_signature
					);

$PayPal = new PayPal($PayPalConfig);

// Prepare request arrays
$MPFields = array(
					'emailsubject' => '', 						// The subject line of the email that PayPal sends when the transaction is completed.  Same for all recipients.  255 char max.
					'currencycode' => '', 						// Three-letter currency code.
					'receivertype' => '' 						// Indicates how you identify the recipients of payments in this call to MassPay.  Must be EmailAddress or UserID
				);

// Typically, you'll loop through some sort of records to build your MPItems array. 
// Here I simply include 3 items individually.  

$Item1 = array(
					'l_email' => '', 							// Required.  Email address of recipient.  You must specify either L_EMAIL or L_RECEIVERID but you must not mix the two.
					'l_receiverid' => '', 						// Required.  ReceiverID of recipient.  Must specify this or email address, but not both.
					'l_amt' => '', 								// Required.  Payment amount.
					'l_uniqueid' => '', 						// Transaction-specific ID number for tracking in an accounting system.
					'l_note' => '' 								// Custom note for each recipient.
			);
			
$Item2 = array(
					'l_email' => '', 							// Required.  Email address of recipient.  You must specify either L_EMAIL or L_RECEIVERID but you must not mix the two.
					'l_receiverid' => '', 						// Required.  ReceiverID of recipient.  Must specify this or email address, but not both.
					'l_amt' => '', 								// Required.  Payment amount.
					'l_uniqueid' => '', 						// Transaction-specific ID number for tracking in an accounting system.
					'l_note' => '' 								// Custom note for each recipient.
			);
			
$Item3 = array(
					'l_email' => '', 							// Required.  Email address of recipient.  You must specify either L_EMAIL or L_RECEIVERID but you must not mix the two.
					'l_receiverid' => '', 						// Required.  ReceiverID of recipient.  Must specify this or email address, but not both.
					'l_amt' => '', 								// Required.  Payment amount.
					'l_uniqueid' => '', 						// Transaction-specific ID number for tracking in an accounting system.
					'l_note' => '' 								// Custom note for each recipient.
			);
									
$MPItems = array($Item1, $Item2, $Item3);  // etc

$PayPalRequestData = array('MPFields'=>$MPFields, 'MPItems' => $MPFields);

// Pass data into class for processing with PayPal and load the response array into $PayPalResult
$PayPalResult = $PayPal->MassPay($PayPalRequestData);

// Write the contents of the response array to the screen for demo purposes.
echo '<pre />';
print_r($PayPalResult);
?>