我想在我的codeigniter代码中实现贝宝集成。但是我需要的是只有一个功能，即付款确认或验证

Question

I am working with web services on codeigniter framework .My friend working on android app development is using everything of paypal payment gateway as of its own.he asked me to just build one service of paypal that is , payment confirmation or verification. I have uploaded payment library onto my server but i am not getting exact code of payment verification on net.

Answer 1

When you make payment in the paypal you should get the payment_status from the paypal site

Response

SUCCESS
mc_gross=1.00
protection_eligibility=Partially+Eligible+-+INR+Only
address_status=unconfirmed
tax=0.00
payment_date=07%3A40%3A51+Aug+06%2C+2013+PDT
payment_status=Completed
charset=windows-1252
first_name=Sureshkumar
etc.....

If failed you will get

FAIL 403

This is used for verify process after transaction id is return.

$tx=$_REQUEST['tx'];

$paypal_url='https://www.paypal.com/cgi-bin/webscr?cmd=_notify-synch&tx='.$tx.'&at=token here';
$curl = curl_init($paypal_url);
$data = array(
"cmd" => "_notify-synch",
"tx" => $tx,
"at" => "token here"
);            

$data_string = json_encode($data); 
curl_setopt ($curl, CURLOPT_HEADER, 0);
curl_setopt ($curl, CURLOPT_POST, 1);
curl_setopt ($curl, CURLOPT_POSTFIELDS, $data_string);
curl_setopt ($curl, CURLOPT_SSL_VERIFYPEER, 0);
curl_setopt ($curl, CURLOPT_RETURNTRANSFER, 1);
curl_setopt ($curl, CURLOPT_SSL_VERIFYHOST, 1);

$headers = array (
'Content-Type: application/x-www-form-urlencoded',
'Host: www.paypal.com',
'Connection: close'
);

curl_setopt ($curl, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
curl_setopt ($curl, CURLOPT_HTTPHEADER, $headers);
$response = curl_exec($curl);
$lines = explode("\n", $response);
$keyarray = array();
if (strcmp ($lines[0], "SUCCESS") == 0) {
    for ($i=1; $i<count($lines);$i++){
        list($key,$val) = explode("=", $lines[$i]);
        $keyarray[urldecode($key)] = urldecode($val);
    }
    $first_name=$keyarray['first_name'];
    $last_name=$keyarray['last_name'];
    $payment_status=$keyarray['payment_status'];
    $business=$keyarray['business'];
    $payer_email=$keyarray['payer_email'];
    $payment_gross=$keyarray['payment_gross'];
    $mc_currency=$keyarray['mc_currency']; 
}