how to use variables passed through header() in php [closed]

Question

I'm using header() to pass var user from one page to another as:

header( "Location: temp.php? user = $user" );

The variable is getting passed and is shown on the URL of the other page.

I don't know how to use the var user in that page. Please help.

Answer 1

page1.php

<?php
    $user = "batman";
    header("Location:temp.php?user=".$user);
    exit();
?>

temp.php?user=batman (you have just been redirected here)

<?php
    if($_GET){
        echo $_GET['user']; // print_r($_GET); //remember to add semicolon      
    }else{
      echo "Url has no user";
    }
?>

Or you could use a $_SESSION - but this could easily complicate things

page1.php

<?php
    session_start();
    $_SESSION['user'] = "batman";
    header("Location:temp.php);
    exit();
?>

temp.php

<?php
    session_start();
    echo $_SESSION['user'];
    unset($_SESSION['user']); // remove it now we have used it
?>