如何在php中使用通过header（）传递的变量[关闭]

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 another page.

But i dont know how to use these var user in that page. Please help.

if the 'other page' is in PHP, you only need to:

$user=$_GET['user'];

EDIT: If you are not sure if you will receive 'user' and want to avoid error messages you should do:

if(isset($_GET['user'])){
    $user=$_GET['user'];
}else{
    //user was not passed, so print a error or just exit(0);
}

if you are using this to pass value

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

then on temp.php you have to use

$var=$_GET['user'];

to get the value and now $var contains the value you passed.

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);       
    }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
?>