Non chunked file download

It also isn't really necessary. Here's a reworked version. Unfortunately I don't have any chunking APIs so I cannot verify it is working correctly so you'll need to run it through its paces to make sure it is correct. I'm guessing on their success code. Look at the response object when it fails. The reason phrase should have the error message if any and status code tells what went wrong.

Also look at the header being sent and see if anything is wrong. The response body might have information as well. Basically when you open the response stream in your code, you are reading bytes in order which means you could technically define stream ranges and read them in parallel and therefore use the power of multiple cores n your machine to achieve faster download.

Similar principle is used in download manager applications with addition for download resuming. The following approach enables the power of parallel operations on multi-core machines and can be used as a base for download resume. This is only the base implementation which allows downloading files in chunks in parallel. And now to begin with hands on code. First thing I decided to do is to do is to handle the response stream ranges in a collection of model objects.

I could got with dictionary in this case, but using a model class seemed more readable solution. Before we switch to the logic we need to declare a model for a result. We are going to need few infos for the invoker of the download method. I found following properties useful, so I put them as a part of a download result method. And now to the main stuff. The file which I am going to download in this program is an external file and will be downloaded from a URL.

Now I will create a project root directory called php-download-large-file anywhere in your system. I will show you how to do streaming a large file in PHP or in other words how to read file in chunks instead of reading file at once. I will explain how to read large file using a defined chunk size and using the built-in function fpassthru which is available in PHP.

While you read the file in chunks you will see that browser is downloading file in the defined chunk size. Notify me of follow-up comments by email. Affiliate Disclosure: Make Tech Easier may earn commission on products purchased through our links, which supports the work we do for our readers.

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We will not share your data and you can unsubscribe at any time. Miguel Leiva-Gomez Miguel has been a business growth and technology expert for more than a decade and has written software for even longer. Leave a comment. Facebook Tweet. Leave a Comment Cancel reply Yeah! Contact me by phone only. How to Reset the Root Password in Linux.