File downloader script download#
With changing this, we can start the download under a different name from the name used on the server. support the VB, Visual C++, PowerBuilder. In the example, we are using basename($file) to derive the filename directly from the passed string, but we can also use any other name here (for example "Content-Disposition: attachement filename=download.pdf"). VersalSoft File Download ActiveX Control 3.05 is such a useful tool that you can use it in the Web Project or application project and easy to realize the batch download batch files from Internet/intranet. The name stated in the line "Content-Disposition: attachement filename='.basename($file)", is the name, under which the browser will try to save the file. The "Content-Type: application/force-download" ensures, that the file is offered as download and that it is not opened in the browser (you can omit this line). I will come to some details of the header in the next section. Of course, you can adjust this header like you want. If not, we are firing a "404 Not Found", otherwise, we are starting the download.įor the download, first, we are sending some headers to the requesting browser and after that, we are just outputting the content of the file with the PHP function readfile(). When having determined the path of the file, first of all, we are checking whether the file is really existing on the server. Otherwise by calling something like "download.php?file=./secret.php", everyone could download arbitrary files from our webspace (for example plain text PHP files including passwords etc). At this point, it is very very important to ensure that nobody can successfully call the script with a file to which he or she should not have any access. Header('Content-Length: '.filesize($file)) įirst of all, we are catching the variable, we have defined in the link by calling $_GET. Header('Cache-Control: must-revalidate') Header('Content-Type: application/force-download') Header('Content-Disposition: attachement filename='.basename($file))
File downloader script code#
We are writing the following PHP code into the file "download.php".
Of course, you can change the names of the script file, the variable or the link like you want. With this link, we are opening the PHP script (stored as download.php) and we are passing the variable "file" via GET, here "test.pdf". In the HTML of our website, we would like to offer the HTML links for downloading the file in the following format. Later, the script should be callable by just using a normal HTML link.
File downloader script how to#
Today, I would like to show you how to create a little download script using PHP.
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