I want the session increase more number every time I click on a button. The problem is I can not get it to increment. Seemed like it get the same value all the time. The script is below.
$no = 1;
session_start();
session_register("sess_id");
$_SESSION['sess_id'][]=$no;
$no++;
Your question is a bit vague, but I think you're looking for something along the lines of:
ReplyDeletesession_start();
if (isset($_SESSION['number'])) { /* If there is already a value set */
$_SESSION['number']++; /* Increment by 1 */
}
else { /* If there is no value set, ie the user is clicking the button for the first time */
$_SESSION['number'] = 1; /* Set to 1 */
}
All you need to do is increment the value in the $_SESSION array:
ReplyDeletesession_start();
$_SESSION['no'] = empty($_SESSION['no']) ? 0 : $_SESSION['no'];
$_SESSION['no'] += 1;
Using session_register is DEPRECATED as of PHP 5.3.0
ReplyDelete<?php
session_start();
$_SESSION['count']=(isset($_SESSION['count']))?$_SESSION['count']+1:0;
?>
The main issue is how you're incrementing your variable. PHP does not default to assigning variables by reference, so $_SESSION['sess_id'][] = $no; is actually assigning by value (in addition to indexing the variable as an integer). Your subsequent call $n++ won't alter the value stored in your PHP session.
ReplyDeleteWhat I think you want is to assign by reference, e.g.
$no = 1;
session_start();
$_SESSION['your_session_var_name'] =& $no; // value is '1'
$no++; // $no is now '2'
echo $_SESSION['your_session_var_name']; // outputs '2'
Do not use session_register anymore, just use the $_SESSION array.
ReplyDeletesession_start();
if(!isset($_SESSION['sess_id'])) $_SESSION['sess_id'] = 0;
$_SESSION['sess_id']++;