我的行为很奇怪,我不知道如何获取有关正在发生的事情的更多信息...
我正在使用带有 NVP API 的 Paypal Express Checkout
。基本上,我发送一个请求,Paypal 以 key1=value1&key2=value2...
我用 curl 发送了第一个请求,一切正常。
然后我用 curl 发送下一个请求,但是 $result
是空的。但奇怪的是,如果我打印 $paypal_url
并将其复制/粘贴到浏览器中,我会得到正确的响应。
所以 curl 似乎没有发送请求,但我不明白为什么。我如何监视 curl 和 Paypal 之间的交换?或者我怎样才能获得有关正在发生的事情的更多信息?
谢谢!
//First request (fine) : Get Paypal Checkout Details
$paypal_url = $url."?VERSION=204.0&USER=".$user."&PWD=".$pwd."&SIGNATURE=".$signature."&METHOD=GetExpressCheckoutDetails&TOKEN=".$token;
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, $paypal_url);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_COOKIESESSION, true);
curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true);
$result = curl_exec($curl);
curl_close($curl);
//parse the result
parse_str($result);
//Check data integrity (nothing relevant)
if($ACK!="Success" || $token!=$TOKEN || $amount!=$PAYMENTREQUEST_0_AMT || $currency!=$PAYMENTREQUEST_0_CURRENCYCODE) {
header("HTTP/1.0 402 Payment Required");
die("Couldn't realize the payment checkout : ".$ACK." ".$TOKEN." required: ".$PAYMENTREQUEST_0_AMT." ".$PAYMENTREQUEST_0_CURRENCYCODE."<br/>".$token." payed : ".$amount." ".$currency);
}
//Second request : Do Paypal checkout
$paypal_url = $url;
$paypal_url .= "?VERSION=204.0";
$paypal_url .= "&USER=".$user;
$paypal_url .= "&PWD=".$pwd;
$paypal_url .= "&SIGNATURE=".$signature;
$paypal_url .= "&METHOD=DoExpressCheckoutPayment";
$paypal_url .= "&TOKEN=".$token;
$paypal_url .= "&PAYERID=".$payerid;
$paypal_url .= "&PAYMENTREQUEST_0_PAYMENTACTION=Sale";
$paypal_url .= "&PAYMENTREQUEST_0_AMT=".$amount;
$paypal_url .= "&PAYMENTREQUEST_0_CURRENCYCODE=".$currency;
$paypal_url .= "&PAYMENTREQUEST_0_ITEMAMT =".$amount;
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, $paypal_url);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_COOKIESESSION, true);
curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true);
$result = curl_exec($curl);
curl_close($curl);
//Display the URL and the result... But the result is missing !
die($paypal_url."\n".$result);
//If I now copy/paste the content of $paypal_url into a browser, I get the expected result.
最佳答案
在 CURL 中启用详细模式...
curl_setopt($curl, CURLOPT_VERBOSE, true);
...并查看正在传输/接收的数据
关于php - Curl 以空字符串响应。如何获取更多信息?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/38220083/