PHP Curl Paypal Sandbox

Question

Is it possible to use CURL and Paypal\'s Developer Sandbox? When I try this code it says in print_r($lines); that I need to login to the Sandbox, how can I make it send my

Answer 1

If anyone using java with paypal PDT.. apache commons httpclient 4.1 is used here..

// Imports ----------------
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.params.HttpConnectionParams;
import org.apache.http.params.HttpParams;
// end of imports ---------------

            HttpClient httpclient = new DefaultHttpClient();  
            HttpParams myParams = httpclient.getParams();
            HttpConnectionParams.setConnectionTimeout(myParams,40000);
            HttpConnectionParams.setSoTimeout(myParams,40000);
            HttpPost httppost = new HttpPost("https://www.sandbox.paypal.com/cgi-bin/webscr");             
            httppost.setHeader("Content-Type", "application/x-www-form-urlencoded");

         try {  
                // Add your data  

                String txToken = "xxxxxxxxxxxx";
                String authToken = "xxxxxxxxxxxxxxxxxxxxxxxxx";                 

                List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2); 
                nameValuePairs.add(new BasicNameValuePair("cmd", "_notify-synch"));  
                nameValuePairs.add(new BasicNameValuePair("tx", txToken));  
                nameValuePairs.add(new BasicNameValuePair("at", authToken));
                httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));

                HttpResponse response = httpclient.execute(httppost);  

                InputStream is = response.getEntity().getContent();
                BufferedReader reader = new BufferedReader(new InputStreamReader(is));
                StringBuilder str = new StringBuilder();
                String line = null;

                while((line = reader.readLine()) != null){
                     str.append(line + "\n");
                }
                is.close();
                     String responseText = str.toString();
                     logger.info("----------------------------------------------------");
                     logger.info("RESPONSE : " + responseText);
                     logger.info("----------------------------------------------------");     
                     getContext().getResponse().getWriter().write(responseText);                


             }
             catch (Exception e) {  
                     logger.info("----------------------------------------------------");
                     logger.info("ERROR : " + e.getMessage());
                     logger.info("----------------------------------------------------");    
             }   

Answer 2

Maybe not exactly what you want as an answer, but I just keep recommending this script if you want to use PayPal from PHP:

http://www.micahcarrick.com/04-19-2005/php-paypal-ipn-integration-class.html

Very clean script, which makes it easy to understand the parts of a transaction and edit things.

It also comes with examples provided on how to use the script with PayPal's sandbox. If I remember correctly, you just have to change one variable (and you obviously need an account for the sandbox).

Answer 3

This should work:

$tid = $_GET['tx'];
$auth_token = "zzzzzzzzzzzzzzzzzzzz";
$paypal_url = "www.sandbox.paypal.com";

$url = "https://" . $paypal_url . "/cgi-bin/webscr";

$post_vars = "cmd=_notify-synch&tx=" . $tid . "&at=" . $auth_token;

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post_vars);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($ch, CURLOPT_TIMEOUT, 15);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HEADER, false);
curl_setopt($ch, CURLOPT_USERAGENT, 'cURL/PHP');

$fetched = curl_exec($ch);



$lines = explode("\n", $fetched);
$keyarray = array();
if (strcmp ($lines[0], "SUCCESS") == 0) {
for ($i=1; $i<count($lines);$i++){
list($key,$val) = explode("=", $lines[$i]);
$keyarray[urldecode($key)] = urldecode($val);
}
// check the payment_status is Completed
// check that txn_id has not been previously processed
// check that receiver_email is your Primary PayPal email
// check that payment_amount/payment_currency are correct
// process payment
$firstname = $keyarray['first_name'];
$lastname = $keyarray['last_name'];
$itemname = $keyarray['num_cart_items'];
$amount = $keyarray['mc_gross'];

echo ("<h2>Thank you for your purchase!</h2>");

}
else if (strcmp ($lines[0], "FAIL") == 0) {
    echo ("<h2>Sorry, something went wrong</h2>");

// log for manual investigation

}

Also $_GET['tx'] look up stops working after ~5 minutes