You can only download one file per server response, because you can only send one set of response header. If you want to download multiple, based on which checkbox values are selected, write them to a. If you want to download multiple, based on which checkbox values are selected, write them to a ZIP archive and return that instead.
Oh, I really thought I can download multiple files selected on checkbox at the same time by using loop. Thanks for the tip. Oh, I really thought I can download multiple files selected on checkbox at the same time by using loop without zipping it.
We're a friendly, industry-focused community of developers, IT pros, digital marketers, and technology enthusiasts meeting, learning, and sharing knowledge. You're trying to visit a URL that doesn't currently exist on the web. Most likely, a member posted a link a long time ago to a web page that has since been removed. It's also possible that there was a typo when posting the URL.
We redirect you to this notice instead of stripping out the link to preserve the integrity of the post. Guessing is not too difficult and in a few tries, an attacker could obtain configuration or password files. What you must do — always — is sanitize the input. Accept only file names, like this:. Anything is better than blindly accept requests. If you need to restrict access to a file, you should generate encrypted, one-time IDs, so you can be sure a generated path can be used only once.
This is a very widespread problem and unfortunately even the PHP manual is plagued with errors. There is no such thing in HTTP. You may add those headers if you want, but they do absolutely nothing.
Sadly, this wrong example is present even in the PHP manual. The author must have been really frustrated and added three Content-Type headers. What would it be like to not having to worry about old versions of Internet Explorer?
Note: the quotes in the filename are required in case the file may contain spaces. The code above will fail in IE6 unless the following are added:. Now, the use of Cache-Control is wrong in this case, especially to both values set to zero, according to Microsoft , but it works in IE6 and IE7 and later ignores it so no harm done.
If you still get strange results when downloading especially in IE , make sure that the PHP output compression is disabled, as well as any server compression sometimes the server inadvertently applies compression on the output produced by the PHP script. Historically it had some performance issues and while the documentation claims there are no memory problems, real-life scenarios beg to differ — output buffering and other subtle things.
Regardless, if you need byte ranges support, you still have to output the old-fashioned way. You just output a header and the module takes care of the rest. I need to give the user the option to click on a single link that will download ALL of the files that correspond to the matching records from the search if he so desires.
Any ideas? Well, actually it could be quite easily done. Have your script output a series of frames, with each frame source pointing to the url of the file you want to be able to let users download. I would look into zlib, it can be compiled into PHP, if that is an option, with it you can create compressed archives on the fly. This way you can create an array of the filenames for download, create a compressed archive of the files, and then send the appropriate header information to allow the user to download the stream in one fast swoop.
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