calling a php session variable from outer script - php

i have a problem calling a session variable from another script. can anybody help me on this matter.
Below is the script that i create the session and store the time in a session variable.
<?php
session_start();
$orgtimestamp = date("Y-m-d h:i:sa");
$_SESSION['orgtimestamp'] = $orgtimestamp;
?>
Here is the script that i try to access this session variable from a function of it. till now nothing worked
<?php
include '../../mydomain/myscript.php';
class survey_Tracksciprt
{
public static function timeofclick(){
session_start();
$time_org = $_SESSION['orgtimestamp'];
echo $time_org;
}
}
this hasnt worked upto now, nothing prints...can anybody give tips to sought this out and its compulsory to have this function timeofclick

You're not creating your class on your second file add:
//I don't know what this does but if it already starts a session remove the session start inside the class.
include '../../mydomain/myscript.php';
$survey = new survey_Tracksciprt();
$survey::timeofclick();
class survey_Tracksciprt
{
public static function timeofclick(){
session_start();
$time_org = $_SESSION['orgtimestamp'];
echo $time_org;
}
}
I also advice putting session_start at the top of your file.

<?php
session_start();
include '../../mydomain/myscript.php';
class survey_Tracksciprt
{
public static function timeofclick(){
$time_org = $_SESSION['orgtimestamp'];
echo $time_org;
}
}
Always use the session_start(); at the top line of the page.

First, you need an init-session.php file, containing:
if (session_status() == PHP_SESSION_NONE) {
session_start();
}
Second, you need to include this file at the start of your loader/layout (whatever you have there), so no operation will be executed before you initialize your session.
Third, you should initialize $orgtimestamp like this:
<?php
$orgtimestamp = date("Y-m-d h:i:sa");
$_SESSION['orgtimestamp'] = $orgtimestamp;
?>
Fourth, you need to call survey_Tracksciprt::timeofclick().

Related

Can the session expire when using a function of an included file?

I've got this session variable, which was initiated in index.php
<?php
$sid = session_id();
if (empty($sid) {
session_start();
}
//value of the variable can be changed and saved before coming back to the index
if(!isset($_SESSION['context'])){
$_SESSION['context'] = 1;
}
//...
?>
Later a script is used to create or update a database entry.
entryupdate.php:
<?php
include_once("template.php");
/*....*/
$sid = session_id();
if (empty($sid)) {
session_start();
}
/*....*/
//Create a new entry, context is not given in the $input_object at this point.
$template = new Template($input_object);
$context = $template->getContext();
?>
template.php is a script where only the Template Object is defined, so I don't call $session_start in it, my rationale being that it would always be called by the scripts including it, as it is in the case I'm describing here. Here is the relevant code:
<?php
class Template
{
private $m_context;
//other private parameters
function __construct($arguments_object){
if(!is_null($arguments_object)){
/*....*/
$this->m_context = $arguments_object->context;
/*....*/
}
}
/*....*/
function getContext(){
if(!empty($this->m_context)){
return $this->m_context;
}else{
//this would be our case, as the parameter was not initialized yet.
return $_SESSION['context'];
}
}
/*....*/
}
?>
Now, a colleague stumbled on an error and upon investigation, I found out that the $context was set to NULL. When I tried to reproduce the issue, the context was correctly initialized. And to be honest, for the few years the tool has been used, it is the first time this kind of issue was encountered.
I've also checked, at no point I am unsetting this particular session variable.
Am I making a false assumption there, in thinking that template.php would find the session variable when the session was started in entryupdate.php where it was included and used?

How to pass session variable

I'm trying to use a Single Sign-on function for a specific script but it's not working. I think the problem is when I try to change between the 2 sessions.
I know about session_start(); should be on the first line but I don't know how to do that in a function called.
Here the function code :
function singleSignOn(){
session_name('Main');
session_start();
$username = $_SESSION['id'];
session_id('Specific');
session_start();
return $username;
}

Variables from Session Class not passing to new pages

I defined a session class,which uses values from the $_POST variable in an array called $sessionVars. When a user logs-in a new instance of the session class is created, a construct function sets session variables.I checked that this is working correctly.Problem: When i try to access those variables from a different page the session shows that its not started and those variables are undefined. Confused cause I thought $_SESSION being a super global means its accessible all the time(i.e scope doesn't matter) . I suspect im doing something wrong when I try to access the $_SESSION variables since they are in a class. I appreciate any help..thanks in advance.
class userSession{
public function __construct($sessionVars){
session_start();
$_SESSION['userEmail']=$sessionVars['user'];
$_SESSION['userID']=$sessionVars['userID'];
$_SESSION['userFolder']='users/user_'.$_SESSION['userID'];
}
/*just for housekeeping. not used in application*/
function showvars(){
echo $_SESSION['userEmail'].'<br><br>';
echo $_SESSION['userID'].'<br><br>';
echo $_SESSION['userFolder'];
$sessionID=session_id();
echo '<br><br>'.$sessionID;
}
}//**END USER SESSION
/*This is the login script that calls the session*/
include 'library.php';
$show=new render;
$show->index();
if(!isset($_POST['login']) ){
$show->usrLogin();
} else{
if(!empty($_POST['email'])){
$postVars=array('user'=>$_POST['email'],'pass'=>$_POST['password']);
$user=new user();
$data=$user->loginUser($postVars);
$currSession=new userSession($data);
}else{
die('No data in POST variable');}
}
/*file upload that needs the session[userFolder] variable*/
function file_upload(){
$userFolder=&$_SESSION['userFolder'];
echo '<hr>userFolder is : '.$userFolder;
function do_upload(){
if(!empty( $_FILES) ){
echo $userFolder.'<hr>';
$tmpFldr=$_FILES['upFile']['tmp_name'];
$fileDest=$userFolder.'/'.$_FILES['upFile']['name'];
if(move_uploaded_file($tmpFldr,$fileDest)){
echo 'file(s) uploaded successfully';
}
else{
echo 'Your file failed to upload<br><br>';
}
return $fileDest; //returns path to uploaded file
} else{die( 'Nothing to upload');}
}//END FUNCTION DO_UPLOAD,
/*Perform upload return file location*/
$fileLoc=do_upload();
return $fileLoc;
}
You need to instantiate an object of this class on every page that uses the session (or start the session manually). Also, you'll not want that constructor, instead some other way of setting vars. This is just for illustration of how it works with your current code, there are much better approaches:
class userSession {
public function __construct(){
session_start();
}
function set_login_vars($sessionVars){
$_SESSION['userEmail']=$sessionVars['user'];
$_SESSION['userID']=$sessionVars['userID'];
$_SESSION['userFolder']='users/user_'.$_SESSION['userID'];
}
}
//page1.php
$session = new userSession;
$session->set_login_vars($loginVars);
//page2.php
//you need to start the session, either with the class
$session = new userSession;
//or session_start();
print_r($_SESSION);

How to access the value from the page included without displaying the content in php

Im using two pages first page s getting values from url and its displaying some content. I included first page in second page but the first page should not be displayed but i have to access the values in second page which is used in first page..
The coding for first page
first.php
In utl the value is passed as first.php?Logid=7773&shiftdate=2013-01-04&shiftid=146&pshift=1&tsid=1&dctype=timebased
<?php
$Logid=$_GET['Logid'];
$ShiftDate=$_GET['shiftdate'];
$ShiftID=$_GET['shiftid'];
$PShift=$_GET['pshift'];
$TsID=$_GET['tsid'];
$DcType=$_GET['dctype'];
// below this some process is carried out
sec.php
<?php
ob_start();
include('first.php');
ob_end_clean();
echo $Logid;
echo $ShiftDate;
echo $ShiftID;
echo $PShift;
echo $TsID;
echo $DcType;
?>
The value is not displayed in second page..
Say how i can access the values in second page .
Pls help me
Thank u !!!
The best way to access data in PHP "generally" (except in small, insubstantial snippets) is through encapsulation. You could put those values into an object. Then, you will be able to access them on sec.php:
first.php:
<?php
class pageData {
public $Logid;
public $ShiftDate;
public $ShiftID;
public $PShift;
public $TsID;
public $DcType;
public function __construct() {
$this->Logid = $_GET['Logid'];
$this->ShiftDate = $_GET['shiftdate'];
$this->ShiftID = $_GET['shiftid'];
$this->PShift = $_GET['pshift'];
$this->TsID = $_GET['tsid'];
$this->DcType = $_GET['dctype'];
}
}
$pageData = new pageData();
?>
sec.php:
<?php
include('first.php');
echo $pageData->Logid;
// ...
echo $pageData->DcType;
?>
Remove ob_end_clean(); and see that will solve it.
ob_end_clean — Clean (erase) the output buffer and turn off output buffering
More
sec.php
<?php
error_reporting(E_ALL);
ini_set("display_errors", 1);
include("first.php");
?>
try above code and see if its return any error.
You are trying to pass the values which are set by GET in the page to the second page, am I right? How about trying to use sessions instead.
You can start a session and define values which will be stored as long as the browser is open and the session is still alive. So:
first.php
<?php
// Starting the session
session_start();
$_SESSION['Logid'] = $_GET['Logid'];
$_SESSION['ShiftDate'] = $_GET['shiftdate'];
$_SESSION['ShiftID'] = $_GET['shiftid'];
$_SESSION['PShift'] = $_GET['pshift'];
$_SESSION['TsID'] = $_GET['tsid'];
$_SESSION['DcType'] = $_GET['dctype'];
?>
sec.php
<?php
echo $_SESSION['Logid'];
echo $_SESSION['ShiftDate'];
echo $_SESSION['ShiftID'];
echo $_SESSION['PShift'];
echo $_SESSION['TsID'];
echo $_SESSION['DcType'];
?>
and use
session_unset();
session_destroy();
to kill the session and destroy the data in the global variable ($_SESSION). If you want to be extra cautious you can use:
session_unset();
session_destroy();
session_write_close();
setcookie(session_name(),'',0,'/');
session_regenerate_id(true);
to make sure everything is really destroyed. A bit of an overkill if you'd ask me but use if necessary.
Hope it helps!

Setting Sessions inside PHP Class

I'm creating a user class to handle my logins. As I wish to set the sessions inside the class after the username and password are validated, do I have to use session_start() at the top of the class, inside the public function where the sessions are to be set, or where the instance is created? Perhaps it could go inside function _construct()?
This is how I would like to call the class:
<php
include('user_class.php');
$user = new user;
$user->login($username,$password);
?>
You can just add session_start(); at the top of the file you're including the class in.
So
<?php
session_start();
include('user_class.php');
$user = new user;
$user->login($username,$password);
?>
would work.
Next to your user-class create yourself a session-class as well.
The user-class then is just storing itself into the session class and does not need to take care about calling session_start or not, that's the job of the session-class.
<php
include('session_class.php');
include('user_class.php');
$session = new session;
if ($session->hasRegisteredUser()) {
$user = $session->getRegisteredUser();
} else {
$user = new user;
    $user->login($username, $password);
$session->setRegisteredUser($user);
}
Does this answer your question or do you need now to know how to do it with the session class?
Yes you can use sessions inside your classes because sessions are global variables in php.
Code Example(adding a new session variable):
<?php
class sessionControle{
...
...
public function addSession($index, $value){
$_SESSION[$index] = $value;
return $_SESSION[$index];
}
}
?>
in your main php file you can include the function $_SESSIONS are global
Code in your main file:
<?php
session_start();
include_once("myClass.php");
$Se = new sessionControle;
echo $Se->addSession('User', 'Crx');
//Double check here !!
echo $_SESSION['User'];
?>
Output: Crx

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