我在 jquery-mobile 上有移动网站,显示画廊。有按钮,单击时应下载当前图像。它在 android 和桌面浏览器中运行良好,使用小型服务器端 php 脚本。但在 iphone 中,它只是在新选项卡中打开图像。是的,我知道,您只需长按即可轻松下载图像,但是很好。我不是想要这个的人)
脚本:
<?php
$file = $_GET['f'];
$file = "images/com_product/product/large/".$file;
download_file($file);
function download_file( $fullPath ){
// Must be fresh start
if( headers_sent() )
die('Headers Sent');
// Required for some browsers
if(ini_get('zlib.output_compression'))
ini_set('zlib.output_compression', 'Off');
// File Exists?
if( file_exists($fullPath) ){
// Parse Info / Get Extension
$fsize = filesize($fullPath);
$path_parts = pathinfo($fullPath);
$ext = strtolower($path_parts["extension"]);
// Determine Content Type
switch ($ext) {
case "gif": $ctype="image/gif"; break;
case "png": $ctype="image/png"; break;
case "jpeg":
case "jpg": $ctype="image/jpg"; break;
}
header("Pragma: public"); // required
header("Expires: 0");
header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
header("Cache-Control: private",false); // required for certain browsers
header("Content-Type: $ctype");
header("Content-Disposition: attachment; filename=\"".basename($fullPath)."\";" );
header("Content-Transfer-Encoding: binary");
header("Content-Length: ".$fsize);
ob_clean();
flush();
readfile( $fullPath );
} else
die('File Not Found');
}
?>