We sometimes encounter situations where downloading a PDF file, if not processed, opens the PDF file directly in the browser, and then you need to save the download file by saving it. This article will be implemented through PHP to download the pdf file directly.
Implementation principle: We only need to modify the page HTTP header, the Content-type set to Force-download, the problem can be solved.
Please look at the code:
Copy Code code as follows:
Forcedownload ("Pdfdemo.pdf");
function Forcedownload ($filename) {
if (false = = File_exists ($filename)) {
return false;
}
HTTP headers
Header (' content-type:application-x/force-download ');
Header (' Content-disposition:attachment filename= '. basename ($filename). "");
Header (' Content-length: ' FileSize ($filename));
For IE6
if (false = = = Strpos ($_server[' http_user_agent '], ' MSIE 6 ')) {
Header (' Cache-control:no-cache, Must-revalidate ');
}
Header (' Pragma:no-cache ');
Read file content and output
return ReadFile ($filename);;
}
For convenience, I wrote a function forcedownload (), and then by calling the function.
