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

Question

I want to carry value stored in session one page to another page where I am using following code which value I want to carry it is not working.
Here is my code
login.php
<?php
include('conn.php');
if (isset($_POST['submit'])) {
$UserName=$_POST['user'];
$PassWord=$_POST['pass'];
$eid=$_POST['eid'];
//echo $UserName;
//echo $PassWord;
$sql = "SELECT role from login WHERE username='$UserName'and password='$PassWord'";
//$sql=mysql_query("select usertype from login where username='$UserType' and password='$Password'")or die (mysql_error());//query sang database
$retval = mysql_query($sql);
if(! $retval ) {
die('Could not get data: ' . mysql_error());
}
while($row = mysql_fetch_array($retval, MYSQL_ASSOC)) {
session_start();
$_SESSION["user"]=$UserName;
$_SESSION["pass"]=$PassWord ;
$_SESSION['role']=$row['role'];
$_SESSION['eid']=$eid;
if ($row['role']==0) {
header("location:admin.php");
}
elseif ($row['role']==1) {
header("location:UserUomePage.php");
}
}
}
echo "Invalid User Name and Password\n";
?>
When I use
echo $_SESSION['eid'];
it is giving user name. How can I get eid value?

Answer 1

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';