If we need to work on the data, generators are probably the best way. We can achieve this by using stream methods. Unsurprisingly, this script uses slightly more memory to run than the text file it copies. For small files, that may be okay. When we start to use bigger files, no so much…. This code is slightly strange. We open handles to both files, the first in read mode and the second in write mode.
Then we copy from the first into the second. We finish by closing both files again. It may surprise you to know that the memory used is KB. That seems familiar. Suppose we wanted to output an image from our CDN, as a sort of redirected application route. We could illustrate it with code resembling the following:.
Imagine an application route brought us to this code. But instead of serving up a file from the local file system, we want to get it from a CDN. A more direct example at stackoverflow. Starkeen do you see that you can't show contents of a remote file but only result of execution — splash Add a comment. Active Oldest Votes. Emil Emil 1, 1 1 gold badge 16 16 silver badges 21 21 bronze badges. Thank you! I have added the information in my post.
Sign up or log in Sign up using Google. Sign up using Facebook. It's because the writers have left out the all important flush after each read. Be sure to include this!
This was the only way I found to both protect and transfer very large files with PHP gigabytes. It's also proved to be much faster for basically any file. Available directives have changed since the other note on this and XSendFileAllowAbove was replaced with XSendFilePath to allow more control over access to files outside of webroot.
Download the source. If you are looking for an algorithm that will allow you to download force download a big file, may this one will help you. I have seen a lot of download scripts that does not test so you are able to download anything you want on the server. Test especially for strings like "..
If possible only permit characters a-z, A-Z and and make it possible to only download from one "download-folder". Using pieces of the forced download script, adding in MySQL database functions, and hiding the file location for security was what we needed for downloading wmv files from our members creations without prompting Media player as well as secure the file itself and use only database queries. Something to the effect below, very customizable for private access, remote files, and keeping order of your online media.
Of course you need to setup the DB, table, and columns. However, if this setting is checked, and browser windows are being re-used, then it will open up on top of the page where the link was clicked to access the script. But, if the setting is unchecked, the output XML file will open up in a new window and there will be another blank window also open that has the address of the script, in addition to our original window.
This is far from ideal, and there is no way of knowing whether users have this option checked or not. But there are some headers, which PHP itself outputs automatically, disturbing this.
So I wrote this function with erasing these. Please use ide. Load Comments. What's New. Most popular in PHP. How to execute PHP code using command line? Most visited in PHP Programs. How to call PHP function on the click of a Button?
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