Php fopen create file download

After you created a file, you should output it's contents to browser, for example with fpassthru , as you use file handler:. Stack Overflow for Teams — Collaborate and share knowledge with a private group.

Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Asked 3 years, 2 months ago. Active 3 years, 2 months ago. Viewed 19k times. Any help? How can it be downloaded if you output nothing? Creating the file on disk and sending the file to the client are two completely different things. This just bit me. I was not checking the filename part of a concatenated string.

I tried append mode and it errors out so does not seem to be dangerous. This is with FreeBSD 4. Behaves the same on 4. I was working on a consol script for win32 and noticed a few things about it. On win32 it appears that you can't re-open the input stream for reading, but rather you have to open it once, and read from there on. Also, i don't know if this is a bug or what but it appears that fgets reads until the new line anyway.

The number of characters returned is ok, but it will not halt reading and return to the script. I don't know of a work around for this right now, but i'll keep working on it. This is some code to work around the close and re-open of stdin. Which contains an array of the response header. Also avoid these names followed immediately by an extension; for example, NUL. For more information, see Namespaces" it is a windows limitation.

So if you have the same problem, goto your php. Open for reading only; place the file pointer at the beginning of the file.

Open for reading and writing; place the file pointer at the beginning of the file. Open for writing only; place the file pointer at the beginning of the file and truncate the file to zero length. Open for reading and writing; otherwise it has the same behavior as 'w'.

Open for writing only; place the file pointer at the end of the file. If you use fopen on a file that does not exist, it will create it, given that the file is opened for writing w or appending a. The example below creates a new file called "testfile. The file will be created in the same directory where the PHP code resides:.

If you are having errors when trying to get this code to run, check that you have granted your PHP file access to write information to the hard drive. The first parameter of fwrite contains the name of the file to write to and the second parameter is the string to be written.

Notice that we wrote to the file "newfile. This is not a problem when you deal with a small file but when you download a large file MB or GB then it may lead to out of memory error.

The file which I am going to download in this program is an external file and will be downloaded from a URL. Now I will create a project root directory called php-download-large-file anywhere in your system. I will show you how to do streaming a large file in PHP or in other words how to read file in chunks instead of reading file at once. I will explain how to read large file using a defined chunk size and using the built-in function fpassthru which is available in PHP.