However, zip and exe files are downloaded automatically to the hard drive by default. You can force images or other kind of files to download directly to the user's hard drive using the PHP readfile function. Here we're going to create a simple image gallery that allows users to download the image files from the browser with a single mouse click. If you see the above example code carefully, you'll find the download link pints to a "download.
The solution to this problem is to download the file forcibly using the built-in PHP readfile function. The readfile function is used in PHP script to forcibly download any file of the current location, or the file with the file path.
The syntax of this function is given below. This function can take three arguments. The first argument is mandatory, and the other two arguments are optional.
This function returns the number of bytes read from the file mentioned in the first argument. The uses of this function are shown in the following two examples. In this example, we will create an HTML file with the following code, where the file name will be passed as a parameter of the URL named path , and the value of this parameter will be passed to the PHP file named download.
Paste the following code in the console tab. Above code will start working and the all the pages present in the file will start rendering. Use headers correctly This is a very widespread problem and unfortunately even the PHP manual is plagued with errors.
Forcing download and Internet Explorer bugs What would it be like to not having to worry about old versions of Internet Explorer? Handling large file sizes readfile is a simple way to ouput files files. Closing thoughts I did my best to provide only accurate information.
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Recent Posts. Improving nginx integration with CloudFlare Read More ». Using Python to batch rename email files Read More ». If you are using an Apache, it's quite simple to figure out the correct mime type. Apache has a file called "mime. Cheers Philipp Heckel. Elliott Brueggeman What's the point of a user's settings if not to determine their environment? If they have it set a specific way, honor their setting. I didn't benchmark further, but I'd be willing to bet non-mmap'able streams still win because they can loop in C instead of PHP.
I wasted days trying to figure this out before I found the problem was easily solved. I'm sure many of you out there have had similar problem when trying to use readfile to output images with a php file as the "src" of a "img" tag. It works fine "as is" in Firefox but not in IE, Safari or g. I found hundreds of results on google all saying things like "there must be white space at the end of you code", "you need this header or that header". I couldn't believe what the solution was but here it is anyway!
Remove the "Width" and "Height" attributes from your "img" tag. If the user manages to set the target to some kinda config-file configuration.
Using include will just behave as a normal request no output.
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