Creating dirs with correct chmod in PHP

One trick I've been dragging with me on all this years of PHP programing is a little snippet to correctly create directories with the chmod I want.

By simply calling mkdir('my_dir', 0777) I used to often end up with directories that I can't write to nor delete, even if I was correctly setting the chmod.

The trick was to reset the mask (using umask(0)) before the mkdir()call and then reapplying the old mask after.

$tmpUmask = umask(0);
mkdir('my_dir', 0777);
umask($tmpUmask);

I must admit that I've never really understand why it was working better than simply calling mkdir() but hey, it's been years that I'm using that now and I never run into access rights issues since.


Tags : #mkdir #umask #php #chmod

Want to add something ? Feel free to get in touch on Twitter : @pixelastic

Search