I am using MODX Revolution 2.1.3-pl (traditional) and am rather new to developing within modx. I previously created my own php outside of modx and when I tried to put it into a snippet, none of my functions worked properly. So, because of the tight deadline i am on, and because the functions were rather simple, I just re-coded and avoided the use of functions. NOW, I am trying to implement paypal and have downloaded the api code to use. It is working great outside of modx, but once again, I put it in a snippet and it is not working because it has a php function in it.
I know it has something to do with how modx accesses variables and it is not able to access my variables inside of the functions. Adding global $modx; inside my function as many searches suggested did nothing. Here is the [shortened] code I need to execute inside of my snippet - any help would be appreciated.
// Set request-specific fields. WORKS FINE
$paymentType = urlencode('Authorization');
$currencyID = urlencode('USD');
// DoDirectPayment NVP WORKS FINE
$environment = 'sandbox'; // or 'beta-sandbox' or 'live'
//Send HTTP POST Request - HERE IS THE FUNCTION - I am not able to get these values to pass to paypal
function PPHttpPost($methodName_, $nvpStr_) {
global $environment;
// Set up your API credentials, PayPal end point, and API version.
$API_UserName = urlencode('username');
$API_Password = urlencode('password');
$API_Signature = urlencode('signature');
$API_Endpoint = "paypal endpoint";
// Curl stuff here (not needed for this question)
// Set the API operation, version, and API signature in the request.
$nvpreq = "METHOD=$methodName_&VERSION=$version&PWD=$API_Password&USER=$API_UserName&SIGNATURE=$API_Signature$nvpStr_";
// Get response from the server.
$httpResponse = curl_exec($ch);
if(!$httpResponse) {
exit("$methodName_ failed: ".curl_error($ch).'('.curl_errno($ch).')');
}
// Extract the response details.
$httpResponseAr = explode("&", $httpResponse);
$httpParsedResponseAr = array();
foreach ($httpResponseAr as $i => $value) {
$tmpAr = explode("=", $value);
if(sizeof($tmpAr) > 1) {
$httpParsedResponseAr[$tmpAr[0]] = $tmpAr[1];
}
}
if((0 == sizeof($httpParsedResponseAr)) || !array_key_exists('ACK', $httpParsedResponseAr)) {
exit("Invalid HTTP Response for POST request($nvpreq) to $API_Endpoint.");
}
return $httpParsedResponseAr;
}
// Add request-specific fields to the request string.
$nvpStr = "&PAYMENTACTION=$paymentType&AMT=$amount";
// Execute the API operation; see the PPHttpPost function above.
$httpParsedResponseAr = PPHttpPost('DoDirectPayment', $nvpStr);
if("SUCCESS" == strtoupper($httpParsedResponseAr["ACK"]) || "SUCCESSWITHWARNING" == strtoupper($httpParsedResponseAr["ACK"])) {
print_r($httpParsedResponseAr, true));
} else {
exit('Payment Processing failed: ' . print_r($httpParsedResponseAr, true));
}
MODX Staff