On a FreeBSD 6.2 system, my PHP scripts are encountering a 4GB filesize limit when using copy(). The copy process simply fails when 4 gigabytes have been transferred.
The attempted transfer is from a local file to a local file, and the filesystem is UFS (which has a 1TB filesize limit).
I have been unable to find any documentation regarding such a limit in PHP or FreeBSD. Can anyone provide a work-around for copying large files within PHP? Shelling out and using system commands is a possibility, but I would prefer to stay in PHP if possible.
PHP version is 5.1.6 with the Suhosin patch.
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I agree that this sounds like a PHP limit. However, I have been unable to find anything in the PHP documentation that would indicate such a limit.
Unfortunately, splitting the file is not an option in this case. A confirmation from someone that they have encountered a similar issue would be enough to determine that this is a system (rather than a user) error.
You can always use shell_exec to run shell commands with php
http://us3.php.net/shell_e
There will be no limit as you are basically running a shell command, and it uses php.
I am using ufs which should have a 1TB filesize limit. Here is the output of df:
Filesystem Size Used Avail Capacity Mounted on
/dev/ad4s1a 190M 57M 117M 33% /
devfs 1.0K 1.0K 0B 100% /dev
/dev/ad4s4d 74G 42G 26G 62% /usr
/dev/ad4s3d 69G 56M 64G 0% /var
/dev/ad5s1 144G 35G 97G 27% /var/db/mysql
If the file copy process was dependent on the /tmp directory it would fail much sooner than 4GB, I think, since the / directory has only 190M in total size.
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by: chingmdPosted on 2008-10-13 at 08:51:31ID: 22703445
I'm no php expert, but reading your question, made me think that the limit is PHP itself. That being the case, I would split the file into managable sizes, and unsplit (if needed) in the destination location.