PHP + PDF，如何使用curl保存下载的PDF？

Welcome

我在页面上保存下载的 pdf 时遇到了一些问题。要下载 pdf，我使用 Curl：

$CurlConnect = curl_init();
curl_setopt($CurlConnect, CURLOPT_URL, 'http://website.com/invoices/download/1');
curl_setopt($CurlConnect, CURLOPT_POST,   1);
curl_setopt($CurlConnect, CURLOPT_RETURNTRANSFER, 1 );
curl_setopt($CurlConnect, CURLOPT_POSTFIELDS, $request);
curl_setopt($CurlConnect, CURLOPT_USERPWD, $login.':'.$password);
$Result = curl_exec($CurlConnect);

Now in $Result（字符串）我有所有 PDF 文件内容。现在开始我的问题。我想保存下载的pdf：

header('Cache-Control: public'); 
header('Content-type: application/pdf');
header('Content-Disposition: attachment; filename="new.pdf"');
header('Content-Length: '.filesize($Result));
readfile($Result);

不幸的是，当我保存或打开新的 PDF 文件时，我得到一个空白文档。也许问题出在最后几行：

header('Content-Length: '.filesize($Result));
readfile($Result);

不幸的是，我不知道如何改变它们才能使其发挥作用......我请求你的帮助。谢谢

Both filesize http://www.php.net/manual/en/function.filesize.php and readfile http://www.php.net/manual/en/function.readfile.php接受文件作为参数。您提供的是字符串而不是文件。

请尝试这个。

$CurlConnect = curl_init();
curl_setopt($CurlConnect, CURLOPT_URL, 'http://website.com/invoices/download/1');
curl_setopt($CurlConnect, CURLOPT_POST,   1);
curl_setopt($CurlConnect, CURLOPT_RETURNTRANSFER, 1 );
curl_setopt($CurlConnect, CURLOPT_POSTFIELDS, $request);
curl_setopt($CurlConnect, CURLOPT_USERPWD, $login.':'.$password);
$Result = curl_exec($CurlConnect);

header('Cache-Control: public'); 
header('Content-type: application/pdf');
header('Content-Disposition: attachment; filename="new.pdf"');
header('Content-Length: '.strlen($Result));
echo $Result;