PHP + PDF，如何使用 curl 保存下载的 PDF?
欢迎
我在将下载的 pdf 保存在页面上时遇到了一点问题.要下载 pdf，我使用 Curl:
I have a little problem with saving the downloaded pdf on the page. To download pdf I use 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);
现在在 $Result(string) 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:
Now in $Result(string) i have all PDF file content. And now begins my problem. I would like to save the downloaded pdf:
header('Cache-Control: public');
header('Content-type: application/pdf');
header('Content-Disposition: attachment; filename="new.pdf"');
header('Content-Length: '.filesize($Result));
readfile($Result);
不幸的是，当我保存或打开一个新的 PDF 文件时，我得到一个空白文档.也许问题出在以下几行:
Unfortunately, when I save or open a new PDF file, I get a blank document. Perhaps the problem is with the last lines of:
header('Content-Length: '.filesize($Result));
readfile($Result);
不幸的是，我不知道如何更改它们以使其正常工作......我请求您的帮助.谢谢
Unfortunately, I do not know what to change them to make it work ... I ask for your help. Thanks
推荐答案
两者 filesize 和 readfile 接受文件作为参数.您提供的是字符串而不是文件.
Both filesize and readfile accepts files as arguments. You are providing a string instead of a file.
请试试这个.
$CurlConnect = curl_init();
curl_setopt($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;
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