I'm trying to add image in zip folder and then download as zip — RN Kushwaha. I tried this but when I tried to unzip the zip-file it says that the archieve is not readable and the archieve may not be valid or its table of content could be encrypted. What's wrong? Show 8 more comments. Ren 1, 5 5 gold badges 15 15 silver badges 24 24 bronze badges. Sun Love Sun Love 5 5 silver badges 9 9 bronze badges.
This answer works! Difference is addFromString, addFile is badly coded. Priyank Bolia Priyank Bolia The Overflow Blog. Who owns this outage? Find centralized, trusted content and collaborate around the technologies you use most. Connect and share knowledge within a single location that is structured and easy to search. Now sometimes the amount of data can be more than , so if the data is over , make another file for every data that is being echoed.
Here you are how to download multiple files The tricks is rendering many iframe in same page. Every frame has different source that force download different files.
See: Download multiple files as a zip-file using php. I use AJAX and jQuery to do it, one way to do it, is to prepare all your files and put them into the session where each files have a unique ID.
The the return of the ajax call is a call to a JavaScript with the list of IDs. That is where you put your download headers. Once you have finish the dump of the bytes, you delete them from the session. Using a unique ID and delete them after download makes sure nobody download twice the same file. What is nice about ti is that if you refresh the page, since the IFrames were dynamic, they don't try to download another time.
And if there are an error, the user won't see them since they are hidden IFrames. The file index. The upload. For customizing this code, we need to be sure about target path where the files has to be uploaded and the compressed zip is to be created. As for this example, the zip file will be created in the uploads folder and it is in the root. Once the multiple files are uploaded and moved to the target successfully, then a download link will be displayed to the browser to let the user to download the created zip file.
Creating the zip file consisting of multiple files will be helpful in many use case scenarios. Some of them are listed below. There are many PHP, Javascript libraries, plugins available in the market to create zip. For example, JSZip library is used to create zip file and also support to edit the zip content. It builds the zip file archives with the help of the library API object. Then, it creates the zip target folder programatically to store the created zip file. The PHP ZipArchive class allows to set file name, number of files, comments and more properties about the file archive.
It contains methods to create zip file directory, add files to the zip archive, empty directory and more. Some of these functions are used in this example to create zip with the number of files uploaded by the user.
This class is loaded in the PHP code and loaded with the uploaded file binaries. In this example, the user can choose and upload multiple files via a HTML form.
You can't. HTTP doesn't provide a mechanism for sending multiple files over one request. You could, however, have some PHP script that generates multiple iframes, which would initiate one download each, and fake it that way.
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