Implement Adaptive Payments

ini_set("track_errors", true);
//set PayPal Endpoint to sandbox
$sandbox="";
$API_AppID = XXXXXXXXXXXXXXXXXXX;//your adaptive payment app Id
//value for check sandbox enable or disable
$sandboxstatus=1;
if($sandboxstatus==1){
	$sandbox="sandbox.";
	$API_AppID="APP-80W284485P519543T";
}
$url = trim("https://svcs.".$sandbox."paypal.com/AdaptivePayments/Pay");
//PayPal API Credentials
$API_UserName = XXXXXXXXXXXXXXXXXXX;//TODO
$API_Password = XXXXXXXXXXXXXXXXXXX;//TODO
$API_Signature = XXXXXXXXXXXXXXXXXXX;//TODO	
//Default App ID for Sandbox	
$API_RequestFormat = "NV";
$API_ResponseFormat = "NV";

$bodyparams = array (
	"requestEnvelope.errorLanguage" => "en_US",
	"actionType" => "PAY",
	"currencyCode" => "USD",//currency Code
	"cancelUrl" => "",// cancle url
	"returnUrl" => "paymentsuccess",//return url
	"ipnNotificationUrl" => "paymentnotify"//notification url that return all data related to payment
);

$finalcart=array(
        array('paypalid'=>"partner1",'price'=>50),
        array('paypalid'=>"partner2",'price'=>50),
        array('paypalid'=>"partner3",'price'=>50),
        array('paypalid'=>"partner4",'price'=>50),
        array('paypalid'=>"partner5",'price'=>50)
      );

$i=0;
foreach($finalcart as $partner){
	$temp=array("receiverList.receiver($i).email"=>$partner['paypalid'],"receiverList.receiver($i).amount"=>$partner['price']);
	$bodyparams+=$temp;	
	$i++;
}

// convert payload array into url encoded query string
$body_data = http_build_query($bodyparams, "", chr(38));
try{
   //create request and add headers
   $params = array("http" => array( 
      "method" => "POST",
      "content" => $body_data,
      "header" => "X-PAYPAL-SECURITY-USERID: " . $API_UserName . "\r\n" .
                     "X-PAYPAL-SECURITY-SIGNATURE: " . $API_Signature . "\r\n" .
                     "X-PAYPAL-SECURITY-PASSWORD: " . $API_Password . "\r\n" .
                     "X-PAYPAL-APPLICATION-ID: " . $API_AppID . "\r\n" .
                     "X-PAYPAL-REQUEST-DATA-FORMAT: " . $API_RequestFormat . "\r\n" .
                     "X-PAYPAL-RESPONSE-DATA-FORMAT: " . $API_ResponseFormat . "\r\n" 
   ));
   //create stream context
   $ctx = stream_context_create($params);
   //open the stream and send request
   $fp = @fopen($url, "r", false, $ctx);
   //get response
   $response = stream_get_contents($fp);
   //check to see if stream is open
   if ($response === false) {
      throw new Exception("php error message = " . "$php_errormsg");
   }
   //close the stream
   fclose($fp);
   //parse the ap key from the response
   $keyArray = explode("&", $response);
   foreach ($keyArray as $rVal){
       list($qKey, $qVal) = explode ("=", $rVal);
       $kArray[$qKey] = $qVal;
   }
   //set url to approve the transaction
   $payPalURL = "https://www.".$sandbox."paypal.com/webscr?cmd=_ap-payment&paykey=" . $kArray["payKey"];
   //print the url to screen for testing purposes
   If ( $kArray["responseEnvelope.ack"] == "Success") {
	echo '<p><a id="paypalredirect" href="' . $payPalURL . '"> Click here if you are not redirected within 10 seconds...</a> </p>';
	echo '<script type="text/javascript">	
	        function redirect(){
		   document.getElementById("paypalredirect").click();
	        }
	        setTimeout(redirect, 2000);
              </script>';
   }
   else {
     echo 'ERROR Code: ' .  $kArray["error(0).errorId"] . " <br/>";
     echo 'ERROR Message: ' .  urldecode($kArray["error(0).message"]) . " <br/>";
  }
}
catch(Exception $e) {
	echo "Message: ||" .$e->getMessage()."||";
}