php - Can't echo out user data on home page -

this code function

 public function getuserdata() {   session_start();   $username = $_session['user'];    $getdata = $this->db->prepare("select * users username=?");   $getdata->bindparam(1, $username);   $getdata->execute();   $row= $getdata->fetch(pdo::fetch_assoc);   $email = $row['email'];   $user = $row['username'];   echo $email. '<br />';   echo $user; }  <?php  require_once "class/user.php";  echo $user; echo $email;   $object = new user(); $object->getuserdata();  ?> 

and here home.php, username, , email echo out function, if try echo $email; on home.php doesn't print. need print out on home page can style output.

already tried starting session on home.php , still doesn't work, started in getuserdata() function.

those variables in scope of function itself, if want access information, you'd have return values function.

user.php

public function getuserdata() {   session_start();   $username = $_session['user'];    $getdata = $this->db->prepare("select * users username=?");   $getdata->bindparam(1, $username);   $getdata->execute();   $row= $getdata->fetch(pdo::fetch_assoc);    return $row; } 

home.php

<?php  require_once "class/user.php";  $object = new user(); $userinfo = $object->getuserdata();  echo $userinfo['username'] . '<br>'; echo $userinfo['email];