我想强制用户下载图片。未在浏览器中打开。
可以使用HTML5此属性 download
,但目前只有Chrome支持它。
我尝试了.htaccess
解决方案,但它不起作用。
<Files *.jpg>
ForceType application/octet-stream
Header set Content-Disposition attachment
</Files>
如果用户点击链接,我如何强行下载所有图片?
<a href="http://blablabla.com/azerty/abc.jpg" target="_blank" />Download</a>
答案 0 :(得分:13)
有两种方法可以做到这一点 - 一个用JS,一个用PHP。
来自this site的JS:
<a href="javascript:void(0);"
onclick="document.execCommand('SaveAs',true,'file.html');"
>Save this page</a>
在PHP中,创建一个名为download.php
的脚本,类似于以下代码:
<?php
// Force download of image file specified in URL query string and which
// is in the same directory as the download.php script.
if(empty($_GET['img'])) {
header("HTTP/1.0 404 Not Found");
return;
}
$basename = basename($_GET['img']);
$filename = __DIR__ . '/' . $basename; // don't accept other directories
$mime = ($mime = getimagesize($filename)) ? $mime['mime'] : $mime;
$size = filesize($filename);
$fp = fopen($filename, "rb");
if (!($mime && $size && $fp)) {
// Error.
return;
}
header("Content-type: " . $mime);
header("Content-Length: " . $size);
// NOTE: Possible header injection via $basename
header("Content-Disposition: attachment; filename=" . $basename);
header('Content-Transfer-Encoding: binary');
header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
fpassthru($fp);
然后将图像链接设置为指向此文件,如下所示:
<img src="/images/download.php?img=imagename.jpg" alt="test">
答案 1 :(得分:-2)
请在.htaccess中尝试此操作:
<FilesMatch "\.(?i:jpg|gif|png)$">
ForceType application/octet-stream
Header set Content-Disposition attachment
</FilesMatch>