About PHP Sessions - php

Question

I've a file in which i've this code
session_start();
session_register("name");
$name = "test";
When i saw the cookies in chrome,it says this is in root folder.
My question here is where does this session get saved on my xampp of local host and where does my session saved in go daddy shared hosting.
If i've session_start(); $_SESSION['id'] ="some value"; ,i can use this some value in all pages,this is what i under stood from reading about session,correct me ,if i'm wrong.
I used this in my shared hosting but when i call the session variable in another page,it is empty,i do not know whether my hosting has session save write permission or what is the reason it could be empty.

Answer 1

There are 2 settings for session saving:
In Shared memory.
In Files.
In case of files you can access the session data, whereas in case of memory you cannot.
to access the session data get the folder path by using this function session_save_path();
Note:- Hosts protect these type of folders so that they cannot be accessed directly
one more thing to check if the session setting is in folder or memory check your phpinfo();
and if files are selected You can explicitly change the path by the same function session_save_path(); Please check: Check Here

Answer 2

The session is saved in the server as a file named for example 1234. This is a textual file. It's saved in a path configurable by php.ini.
Client side a cookie is saved. The content of the cookie is equal to the name of the sessione file 1234. The borwser for each request send the cookie content so the server reads the content of the cookie and checks if a corresponding session exists. For problem using sessions... provides us more code!

Answer 3

To use sessions, you need to do:
session_start();
And then you can do:
$_SESSION['id'] ="some value";
and use it:
$id = $_SESSION['id'];
session_register is a deprecated function, you should not be using it. Anyway, you were using it in the wrong order (the last thing you should do with a value is register it, you were registering a null valued $name variable).

Answer 4

you need to save the new value as
$_SESSION['name'] = "test";
$_SESSION['name'] IS NOT EQUAL TO $name
hence saving value as $name = "test"; will not be saved in $_SESSION['name']
You must call session_start(); on every page to retrieve the saved session in propogation from one page to required page. or set it on/1 in php.ini file(not recommended)
The location of the $_SESSION variable storage is determined by PHP's "session.save-path" configuration. Usually this is "/tmp" on a Linux/Unix system. Use the phpinfo() function to view your particular settings if not 100% sure by creating a file with this content in the DocumentRoot of your domain:
<? phpinfo() ?>
check the below link for more details
session.save_path

Answer 5

The session is stored on the server but the session ID is stored on the users computer as a long random ID. There is no way for the user to edit the session however they may be able to steal a session ID and use it on an unauthorised account.
IT could be possible that you have register_globals set to 1 in the php.ini. It is highly recommended that you turn this off as it could be used maliciously but this would explain why setting $name could also set $_SESSION['name']. It basically allows all variables to be set from that one point.

Answer 6

With Go Daddy 4GH hosting the sessions will save, by default, to the /tmp directory that is at at the same level as your /html directory. You can find the full path to this using these steps.
To Find Your Absolute Hosting Path
1. Log in to your Account Manager.
2. Click Web Hosting.
3. Next to the hosting account you want to use, click Launch.
In the Server section, your hosting account's Absolute Hosting Path displays.
If this is not where you want to save your sessions you can change this in your php.ini file or using session_save_path() function in your script.
For information on this for your XAMPP stack you can check here.