10-14-2012
Environment Variables
1. The problem statement:
What is the mesg value set for your environment? If it is on, how would you turn off your current
session? How would you set it permanently?
3. The attempts at a solution :
Read Unix The textbook.
3rd chapter has many things like environment variables and ans setting value of a variable for our session or any subsequent session but nothing about "mesg" value.
I think its a typo cuz google also doesn't show any result about it.
also went through Operating System Concepts 8th edition
4. Punjab University College of Information technology, Lahore Punjab, Pakistan, Adeel Nisar, Operating systems :
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LEARN ABOUT PHP
session_name
SESSION_NAME(3) 1 SESSION_NAME(3)
session_name - Get and/or set the current session name
SYNOPSIS
string session_name ([string $name])
DESCRIPTION
session_name(3) returns the name of the current session. If $name is given, session_name(3) will update the session name and return the old
session name.
The session name is reset to the default value stored in session.name at request startup time. Thus, you need to call session_name(3) for
every request (and before session_start(3) or session_register(3) are called).
PARAMETERS
o $name
- The session name references the name of the session, which is used in cookies and URLs (e.g. PHPSESSID). It should contain only
alphanumeric characters; it should be short and descriptive (i.e. for users with enabled cookie warnings). If $name is specified,
the name of the current session is changed to its value.
Warning
The session name can't consist of digits only, at least one letter must be present. Otherwise a new session id is generated
every time.
RETURN VALUES
Returns the name of the current session. If $name is given and function updates the session name, name of the old session is returned.
EXAMPLES
Example #1
session_name(3) example
<?php
/* set the session name to WebsiteID */
$previous_name = session_name("WebsiteID");
echo "The previous session name was $previous_name<br />";
?>
SEE ALSO
The session.name configuration directive .
PHP Documentation Group SESSION_NAME(3)