PHP file_put_contents() error

Question

Everytime I try to modify a file, I get this error and I don't know what it means:

A PHP Error was encountered

Severity: Warning

Message: file_put_contents() [function.file-put-contents]: Only 0 of 19463 bytes written, possibly out of free disk space

Filename: Template/String.php

Line Number: 369

I tried looking for solutions and so far none of them made sense, well, in my opinion.

Any thoughts? A little help here please. Thank you very much.

Answer 1

This is an old question but it comes up when Googling for the error message. Here is another possible cause for this error message.

The ext2/3/4 filesystems can reserve disk space for root. Often it is 5% of the drive. df shows the drive is not entirely used. Root can write to the drive. Non-root users will only be able to create files but not write any data to them. See dumpe2fs and tune2fs for more details.

Answer 2

This probably means that PHP is able to get a valid file descriptor, but is hitting a wall (such as a quota, sticky bit, etc) when actually trying to write the data.

It is also conceivable that you are writing (perhaps unwittingly) to a network file system that is having a problem with its peer.

More information regarding your platform would help (I've seen SELinux do strange things when improperly configured), but I think you get the gist of what to check.