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Download PHP array as a file - Stack Overflow
I realize there are a number of posts here for reformating the php $_FILES array, but they don't handle all cases. This handles the single case, the multiple file case, and even submitting multiple file arrays. This way no matter what, before ever touching the files array I call this regardless of what it might be: php /**. This tutorial will walk you through how to read files in PHP into a string, an array, line-by-line, and more. Example source code download included. This tutorial will walk you through how to read files in PHP into a string, an array, line-by-line, and more. Example source code download included. Download PHP array as a file. Ask Question Asked 8 years, 10 months ago. Active 7 years ago. When user hit it - download window appear (or file will be opened in application, depends on browser settings). share | improve this answer. edited Feb 21 '11 at answered Feb 21 '11 at
Php download array to file
Yet, at least half of them share common errors; in many cases programmers simply copy the code from something that works, without even attempting to understand what it really does. What follows is not a complete working download script, but rather a set of issues you should be aware about and that will allow you to write better code. Guessing is not too difficult and in a php download array to file tries, an attacker could obtain configuration or password files.
What you must do — always — is sanitize the input. Accept only file names, like this:. Anything is better than blindly accept requests. If you need to restrict access to a file, you should generate encrypted, one-time IDs, so you can be sure a generated path can be used only once, php download array to file. This is a very widespread problem and unfortunately even the PHP manual is plagued with errors. There is no such thing in HTTP. You may add those headers if you want, but they do absolutely nothing.
Sadly, this wrong example is present even in the PHP manual, php download array to file. The author must have been really frustrated and added three Content-Type headers. What would it be like to not having to worry about old versions of Internet Explorer? Note: the quotes in the filename are required in case the file may contain spaces. The code above will fail in IE6 unless the following are added:. Now, the use of Cache-Control is wrong in this case, especially to both values set to zero, according to Microsoftbut it works in IE6 and IE7 and later ignores it so no harm done.
If you still get strange results when downloading especially in IEmake sure that the PHP output compression is disabled, as well as any server compression sometimes the server inadvertently applies compression on the output produced by the PHP script.
Regardless, if you need byte ranges support, you still have to output the old-fashioned way. You just output a header and the module takes care of the rest. This is the source of many seemingly obscure errors. If you have output buffering, the file will not be sent to the user in chunks but only at the end of the script.
At the start of your script, after checking the file if it exists, etc. Be aware that multiple ranges can be specified e. If the range is not valid, you must output. Do not try to guess or fix the range s as it may result in corrupted downloads, which are more dangerous than failed ones.
Many developers forget to send the code or the Accept-Ranges. Yet others forget php download array to file when you send a range, the Content-Length must match the length of the range rather than the size of the whole file.
You can output the file using the method described above, skipping until the start of the range and delivering the length of the range. I did my best to provide only accurate information. It would be truly sad for me if an article about avoiding common PHP errors contained errors itself. Regardless, my point stands: PHP makes it easy to hack together code that appears to be working, but developers should read and adhere to the official specifications. Great post. Im having issues though.
Im trying to get the remote files with using headers but it kills php download array to file ability for the user to be able to stream the podcast.
BTW I found this post that was exactly what i needed and works great! It sends a bogus error if the range is not accepted and sends the full file size as the content length rather than just the length of the range. Now, browsers are probably coded to cope with all sorts of errors, but we should strive to write correct code, not just working code, php download array to file.
This method works for now and I plane to develop a better functioning version of this. Share on facebook. Share on twitter, php download array to file. Share on linkedin. Share on reddit. 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?
Php download array to file large file sizes readfile is a simple way to ouput files files. Closing thoughts I did my best to provide only accurate information. Next Photography on the iPad Next. Armand Niculescu. As the Senior Project manager, Armand is one of the rare kind of developers that can do both design and programming with equal skill. This, coupled with a solid background and many years of experience, enables him to see the big picture and plan for the small details.
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Php download array to file
Saving a PHP array to a text file. This is a small guide on how to save a PHP array to a text file. In this tutorial, I will also show you how to read the file in question. There are two ways of doing this. One involves encoding the array into a JSON format. PHP File Download. In this tutorial you will learn how to force download a file using PHP. Downloading Files with PHP. Normally, you don't necessarily need to use any server side scripting language like PHP to download images, zip files, pdf documents, exe files, etc. I've seen many download scripts written in PHP, from simple one-liners to dedicated classes. Yet, at least half of them share common errors; in many cases programmers simply copy the code from something that works, without even attempting to understand what it really does. What follows is not a complete working download script, but rather a set of issues you should be aware about and that will.
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