Q: Disk space of a device on the same network So the core thing what I'm trying to do is get the disk space from a other Device that is on the same network.
I use the PHP function disk_total_space() for this. I'm using the connecting string \\192.168.0.1\c$. 
So in total I would have:
disk_total_space('\\\\192.168.0.1\\c$');

However, I have some questions about this connection string, to begin with:


*

*With what protocol does this 'URL' connect?

*why does it need a $ at the end of the driver?


Now I also need to give username and password with my connection string. However I don't know how to fuse this with the connection string I have.
I tried to give the username and password with an FTP-protocol and an HTTPS-protocol, but none seems to work.
https:\\\\username:password@\\\\192.168.0.1\\c$
ftp:\\\\username:password@\\\\192.168.0.1\\c$

As you might notice I'm new to these protocols, so I hope anyone could explain this to me.

A: I know nothing about php, but it seems like to answer this question you need no php knowledge... Hope this helps:
1. With what protocol does this 'url' connect?
This is called UNC Path.  See more details from wiki: Path (computing)
Quote:
A UNC path describes the location of a volume, directory, or file.
The format for a UNC path is \\server\volume\directory\file and is not case-sensitive.
2. Why does it need a $ at the end of the driver?
The $ stands for a hidden share, see more from Microsoft Knowledge Base
3. For your last question, 'Passing UNC username and password within a UNC path'
There is an answer to a similar question on SuperUser.
Quote answer from @grawity's answer
On Windows, you cannot put credentials in UNC paths. You must provide them using net use, runas /netonly, or when asked by Windows. (If you have some programming skills, you can store the SMB password as a "domain credential" using CredWrite(), which is equivalent to checking the "Remember password" box in Windows.)
On Linux, it depends on the program.


*

*GNOME's Gvfs accepts the user@host syntax, but appears to completely ignore the password. (However, you can store it in GNOME Keyring beforehand.)

*smbclient uses the same UNC syntax as Windows; however, it has an --authentication-file option from which credentials could be read.

*Both programs above are using libsmbclient, and can use Kerberos authentication instead of passwords: run kinit user@YOUR.DOMAIN and use smbclient -k //host/share. This is more secure than password authentication.
Note that putting passwords into URIs is deprecated, and you should not rely on it being supported anywhere.
