PayPal Adaptive Payments PHP - php

Question

I have been recently trying to make an API request using PHP to PayPal to pay multiple accounts but so far I have no luck.
`
class PayPal
{
public $_headers = array();
public $_config = array();
public $_data = array();
public function __construct()
{
if (!in_array('curl', get_loaded_extensions()))
{
trigger_error("CURL extension is not installed or enabled", E_USER_ERROR);
}
}
public function update_headers(array $credentails)
{
$this->_headers = $credentails;
return $this;
}
public function update_config(array $config)
{
$this->_config = $config;
return $this;
}
public function pay($data, $call)
{
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $this->get_url());
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
curl_setopt($ch, CURLOPT_HTTPHEADER, $this->_headers);
return curl_exec($ch);
}
public function split_pay()
{
// create the pay request
$this->_data = array(
"actionType" =>"PAY",
"currencyCode" => "USD",
"receiverList" => array(
"receiver" => array(
array(
"amount"=> "1.00",
"email"=>"******#gmail.com"
),
array(
"amount"=> "2.00",
"email"=>"*********.co.uk"
),
),
),
"returnUrl" => "http://test.local/payments/confirm",
"cancelUrl" => "http://test.local/payments/cancel",
"requestEnvelope" => array(
"errorLanguage" => "en_US",
"detailLevel" => "ReturnAll",
),
);
return $this->pay($this->_data, "PAY");
}
private function get_url()
{
if (empty($this->_config))
{
trigger_error("You have not setup the config", E_USER_ERROR);
}
return $this->_config['url'];
}
public function call_headers()
{
if (empty($this->_headers))
{
trigger_error("You have not set any headers", E_USER_ERROR);
}
print_r($this->_headers);
}
}
?>`
This is a class file which I have created, it is very rough but its not working. Here is some more code.
`load->library('paypal');
$pp = new PayPal();
//Bring me the money!
//Headers for paypal
$headers = array(
"X-PAYPAL-SECURITY-USERID: ********",
"X-PAYPAL-SECURITY-PASSWORD: *********",
"X-PAYPAL-SECURITY-SIGNATURE: **********",
"X-PAYPAL-REQUEST-DATA-FORMAT: NV",
"X-PAYPAL-RESPONSE-DATA-FORMAT: NV",
"X-PAYPAL-APPLICATION-ID: APP-80W284485P519543T"
);
$config = array(
'url' => 'https://svcs.sandbox.paypal.com/AdaptivePayments/Pay',
'username' => '********',
'password' => '********',
'signature' => '********',
'app_id' => 'APP-80W284485P519543T',
);
$pp->update_headers($headers)->update_config($config);
print_r($pp->split_pay());
?>
`
I am being returned with this response.
responseEnvelope.timestamp=2014-04-22T06%3A15%3A49.821-07%3A00&responseEnvelope.ack=Failure&responseEnvelope.correlationId=b3d05fe547e22&responseEnvelope.build=10680030&error(0).errorId=580001&error(0).domain=PLATFORM&error(0).subdomain=Application&error(0).severity=Error&error(0).category=Application&error(0).message=Invalid+request%3A+%7B0%7D
Does anyone have any ideas why this might be