How session works (internal processing of session) ?
Answers were Sorted based on User's Feedback
To start a session:
– session_start()
– Creates a session identifier
– Session identifier is passed between client and server
either as
a Cookie, or in GET parameters
• Then, can create, access, and modify session variables:
– $_SESSION[session_var_name] = value;
– $_SESSION is only available once you call session_start()
– $local_variable = $_SESSION[session_var_name];
– Can check if session variable is set by using isset();
• To end a session:
– session_destroy();
| Is This Answer Correct ? | 9 Yes | 1 No |
Answer / vaibhav jain
server knows this info by the session ID that is generated.
All the values are under a session ID, which is unique.
| Is This Answer Correct ? | 3 Yes | 0 No |
Answer / binoyav
I need the answer in more depth.
For ex:- There are two users A & B.
User 'A' is using the machine 'comp_A' and user 'B' is using
'Comp_B'. How the php server knows that user 'A' is using
Comp_A and B is using Comp_B ?
| Is This Answer Correct ? | 2 Yes | 4 No |
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i start a new session with : session_start(); then i set some session variable like this : $_SESSION['name']=$_POST['name'];\ and some another variables. at bottom of page i set header to diffrent page : header('location: index.php'); exit(); now in new page (index.php i can't access to my session variables, like $_SESSION['name']) what's wrong ? thanks. here is my files : a.php ======================================== session_start(); require ('config.inc.php'); if(isset($_POST)) foreach($_POST as $v=>$k) { $items[$v]=$k; } $sql="SELECT * FROM members WHERE username='{$items['user']}' AND pass=MD5('{$items['Password']}') "; $res=mysql_query($sql); $row=mysql_fetch_assoc($res); if($row['username']) { $_SESSION['type']=$row['type']; $_SESSION['name']=$row['name']; $_SESSION['family']=$row['family']; $_SESSION['username']=$row['username']; $_SESSION['date']=$row['date']; } header('location: admin.php'); exit(); ====================================== admin.php ===================================== <?php session_start(); if(!isset($_SESSION['admin'])) { header('location: index.php'); exit(); } require ('config.inc.php'); ?> . . . =================================
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