On Tuesday, Feb 17, 2015 at 1:59 am, Jeffry Killen <jekillen@xxxxxxxxxxx>, wrote:
I've been looking over the output from phpinfo to find a way
to portably get the server user name. It is not obvious to me...
Can I get that from an $_ENV or $_SERVER value?
I have a web base cms system with a file editor and
want to test for ownership of the files and directories
without having to hard code the server name.
I can get file owner ship but if I want to verify it is
the server user account, I would do:
(pseudo code)
$_name = getOwner()
if($_name == < portable reference to server user name>)
{
// proceed
}
This would be for enhanced access permissions analysis.
If a file is being written to by the server user (via php code)
it would be helpful to determine that to forstall error message
generation.
I can’t be absolutely certain it would universally work, but this should work on most platforms:
$user = trim(`whoami`);
Alternatively you could use http://php.net/tempnam to get a temporary filename, create and close it, then get the owner details.
However, as mentioned previously you should really be dealing with errors in a sensible way. If your script has reason to write to a file it should attempt to do so and deal with a failure. Pre-emptive programming should never take the place of defensive programming.
-Stuart
--
Stuart Dallas
3ft9 Ltd
http://3ft9.com/
