How to Continue a Session from One Page to Another with PHP

How do I continue a session from one page to another with PHP

If your PHP setup is clear (session writing ok) and cookie normally sent to browser (and preserved), you should be able to do something like this

On first page :

session_start();
$_SESSION['userName'] = 'Root';

On a second page :

session_start();
if(isset($_SESSION['userName'])) {
  echo "Your session is running " . $_SESSION['userName'];
}

Be careful session_start() must be called before any output is sent, so if you had to use the @ for session_start it can hide warnings.

As these are warnings, if given example doesn't work try to add this before calling session_start :

error_reporting(E_ALL);

How to pass two value from one page to another in php, passing using session

Session will be available through out the application (in all pages) until you destroy it.

To set a session,

<?php
session_start();
$_SESSION['variable_name_1'] = "value_1"; // or $_POST['accountno_1'];
$_SESSION['variable_name_2'] = "value_2"; // or $_POST['accountno_2'];
?>

In the other page, to get the values

<?php
session_start();
echo $_SESSION['variable_name_1'];
echo $_SESSION['variable_name_2'];

?>

How to carry session value from one page to another in php?

Keep session_start() outside the loop.
And check are you getting value from post in $eid or not.
In next page, you can check:

print_r($_SESSION);

and see what values you are getting.

if(isset($_SESSION['eid']))
{
 echo $_SESSION['eid'];
}
else
   echo 'NO';

How to keep session variables between pages with forms?

You never insert $_POST or $_GET without first checking if they're set isset($_POST['variable']), and you can use checks here as well - do a check for the existence of $_POST-variables, and if they exist, use them, and if not, assign the $_SESSION-variables. So on page 3, you will have something like:

$name = $_SESSION['name'] = (isset($_POST['name']) ? $_POST['name'] : ((isset($_SESSION['name']) ? $_SESSION['name'] : '')));

And so on for the other variables. What this does is checks for $_POST, and if it's set, it updates the $_SESSION-variable, and if it's not set, it just updates the $_SESSION-variable with the already existing $_SESSION-variable, and if that doesn't exist either, it sets both variables $name and $_SESSION['name'] to empty, which you then can check for later in the script (and redirect etc.)

How can I access my session variable in a different page with php?

Make sure that you use

session_start();

In the start of every page, or any PHP file that needs to have access to the session.

The easiest way to do this, is have something like a header.php file and include/require this at the top of every page of your site or common pages.

In this header.php you would have something like

<?php
    session_start();
    if (isset($_SESSION['username'])) {
      // This session already exists, should already contain data
        echo "User ID:", $_SESSION['id'], "<br />"
    } else {
        // New PHP Session / Should Only Be Run Once/Rarely/Login/Logout

        $_SESSION['username'] = "yourloginprocesshere";
        $_SESSION['id'] = 444;
    }
?>

The simply have your page like this

 <?php require "header.php"; ?>
 <!doctype html>
 <head></head>
 <body>
 <?php
     if (isset($_SESSION["username"])) {
         $loggenOnUser = $_SESSION["username"];
         echo "Found User: ", $loggenOnUser, "<br />"
     } else {
         $loggenOnUser = " a public user";
     }
 ?>
     <div class="gridContainer clearfix">
         <div id="div1" class="fluid">
             This page is being called by my login.php file.
         </div>
         <div id="LoggedInUser" class="fluid ">
             Hi.  I'm <?php echo $loggenOnUser; ?> 
         </div>
         <img id="homeImage"  src="images/home.gif" /> </div>
     </div>
 </body>
 </html>

how to pass value from one php page to another using session

Use something like this:

page1.php

<?php
session_start();
$_SESSION['myValue']=3; // You can set the value however you like.
?>

Any other PHP page:

<?php
session_start();
echo $_SESSION['myValue'];
?>

A few notes to keep in mind though: You need to call session_start() BEFORE any output, HTML, echos - even whitespace.

You can keep changing the value in the session - but it will only be able to be used after the first page - meaning if you set it in page 1, you will not be able to use it until you get to another page or refresh the page.

The setting of the variable itself can be done in one of a number of ways:

$_SESSION['myValue']=1;
$_SESSION['myValue']=$var;
$_SESSION['myValue']=$_GET['YourFormElement'];

And if you want to check if the variable is set before getting a potential error, use something like this:

if(!empty($_SESSION['myValue'])
{
    echo $_SESSION['myValue'];
}
else
{
    echo "Session not set yet.";
}

Sending value from one page to another with php session

whenever you are need to check the session is start of not you should not check ist with $_SESSION you need to check the session_id() is generated or not (check the post for check the session start Check if PHP session has already started)

if (session_status() == PHP_SESSION_NONE) {
    session_start();
}
if(isset($_GET['B2'])) {
   $_SESSION["info"] = "user-form";
   $_SESSION["weight"] = $weight;
   $_SESSION["price"] = $weight;
   buy_now(); 
}