Passing Variable to the Next Page in PHP

I wanted to pass a variable to the next page using PHP/MySQL and then retrieve/use it there. After a bit of searching and reading on the internet, I found a really easy way to do it and now I'll be sharing this information with you in this article.

Here is an example:
I have two pages
1) A login page (for the user to submit his/her username and password.)
and
2) A welcome page (which will be loaded in case the username and password is correct.)

The variable to be passed is '$login'. It will be assigned to another variable i.e. $id and used in the welcome page.

In this method the variable will be passed through the URL. Just add ?id=$login to the URL and you are almost done.

In my case the example would be:
header("location:welcome.php?id=$login")


Then retrieve this variable on the welcome page using "$_GET". Here is the example:

<?php
$name = $_GET['id'];
print "$name";
?>
(This code will not only get the id and save it in a new variable name but also print it.)

Now you are done and you are free to use this variable anywhere in this page in the form of &name.