How to set default permissions for new files created with php

Question

Hi I am running a centos server and I want to know how I can set the default chmod of a newly created file that is created by php like fopen. At the moment it is doing 644 but I want 666 so where can I specify this setting?

score 5 · Answer 1 · answered May 21 '13 at 14:37

You can use umask() immediately before the fopen() call, but umask shouldn't be used if you're on a multi-threaded server - it'll change the mask for ALL threads (e.g. this change is at the process level), not just the one that you're about to use fopen() in.

e.g.

$old = umask(000);
fopen('foo.txt', 'w'); // creates a 0666 file
umask($old) // restore original mask

It'd be easier to simply chmod() after the fact, however:

fopen('foo.txt', 'w'); // create a mode 'who cares?' file
chmod('foo.txt', 0666); // set it to 0666

I only need `umask($old)` when I want to restore the original mask for the current script, right? Or does the `umask` call make a permanent change? — Adam, Dec 06 '16 at 20:11

score 2 · Accepted Answer · edited May 23 '17 at 11:51

2

Like Linux, PHP has a chmod() command that can be invoked to change file permissions.

See the documentation here: http://php.net/manual/en/function.chmod.php

For a default setting you might try what Patrick Fisher states here: Setting the umask of the Apache user

[root ~]$ echo "umask 000" >> /etc/sysconfig/httpd
[root ~]$ service httpd restart

edited May 23 '17 at 11:51

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answered May 21 '13 at 14:23

Wes Crow

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Yes I know this but i am talking about the default value without changing it :) – user550 May 21 '13 at 14:27
I edited to better address your question. This is supposed to work with Centos. – Wes Crow May 21 '13 at 14:32

How to set default permissions for new files created with php

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