State Management In PHP

State Manage:means tracking user state(location path) where user migrated.

Two Types of state: previous and forward state

How Many Ways we can Handle State

1. using url

2. session 

3. File Handling

Using Url:

we maintain the state or current url of user using Query String state should be maintain from the page itself 

action="valid-upload.php?/=<?php echo basename($_SERVER['PHP_SELF']);?>

or 

<a href="target.php?/=<?php echo basename($_SERVER['PHP_SELF'])?>">

Make a Key in url and note down the Current Page name or its url

header("location:{$_REQUEST['/']}");

then you can header(location) using keyname /

for example

header("location:{$_REQUEST['/']}")