The PHP code in the previous example will be slightly modified to download the file from the given path. The clearstatecache function is used to clear the cache that was previously stored. Two arguments are used in the readfile function. Output After the download link of the PDF file is clicked, the following output will appear.
This article provided a simple way to forcibly download any file using the PHP script, to help readers to add the download feature in their script. I am a trainer of web programming courses. I like to write article or tutorial on various IT topics.
Generally, no PHP script is required to download a file with the extensions exe and zip. This will fail when you changed a file extention on Windows from. Under water it will always be a. Julien Julien 1, 1 1 gold badge 9 9 silver badges 12 12 bronze badges. Better than pathinfo? I don't think so. Better than explode ;-. But, you are right, pathinfo is a better way when enabled some mutualised server disable this function This will fail where a filename has a '.
You'd be surprised at what filenames are out there that have multiple '. Show 3 more comments. This returns the mime type of the image. Reducing the weight of our footer. Linked 1. Related Hot Network Questions. Question feed. Stack Overflow works best with JavaScript enabled.
Accept all cookies Customize settings. UTF-8' ; Also, note this doesn't take into consideration the file content or mime-type, you only get the extension. Improve this answer. Sayed Mohd Ali 2, 3 3 gold badges 10 10 silver badges 26 26 bronze badges.
Really, I mean it. There is no reason whatsoever to disable this function. Tell them that. I have a problem with this example - it doesn't work for names like " This is NOT a secure solution. If someone uploaded to your endpoint without using a browser they could spoof the extension. For example: pathinfo 'image. It does not check actual file body since it doesn't take the file path, and it does not verify its result with a MimeType Map.
You should ensure the value you receive from this is in fact a valid type by querying iana. Show 4 more comments. Todua Adam Wright Adam Wright Todua T. This answer covers everything eg. Not completely on-topic, but it sure did solve my problem!
Don't forget nothing! What do you mean "forget path info"? You use it in the solution! Show 2 more comments.
Peter Mortensen Fantastic, Its Objects all the way down : — Christopher Chase. If you're still not running PHP 5. Otherwise you can stabilize your code by requiring a specific PHP version and otherwise bail out.
So this comment makes indeed sense for people forced to use PHP 5. Show 1 more comment. Do it faster! Thanks a ton for this. It's always nice to find those well-researched newer answers on older questions. If you see the above example code carefully, you'll find the download link pints to a "download. Also, we've used PHP urlencode function to encode the image file names so that it can be safely passed as URL parameter, because file names may contain URL unsafe characters. The regular expression in the above example line no-8 will simply not allow those files whose name starts or ends with a dot character.
Please check out the tutorial on regular expressions to learn the regular expressions in details.
0コメント