การเรียกใช้ข้อมูลจาก Ldap authentication (active directory) ในหน้าอื่นๆ

<?php
session_start();

$adServer = "ldap://ad-hm-01.auds.au.edu";
$adServer = "ldap://168.120.30.112";

$ldap = ldap_connect($adServer);
if (!$ldap) {
        echo "Connect Failed : " . $ldap_error();
        die();
}
$username = $_REQUEST['username'];
$password = $_REQUEST['password'];  

 if ($username == 'admin') {
	$_SESSION['username'] = $username;
	header("location:admin_frontpage.php");
}

$ldaprdn = $username."@auds.au.edu";

ldap_set_option($ldap, LDAP_OPT_PROTOCOL_VERSION, 3);
ldap_set_option($ldap, LDAP_OPT_REFERRALS, 0);

$bind = ldap_bind($ldap, $ldaprdn, $password);

if ($bind) {
        //login (binding success)
    $filter="(sAMAccountName=$username)";
    $result = ldap_search($ldap,"dc=auds,dc=au,dc=edu",$filter);
    ldap_sort($ldap,$result,"sn");
    $info = ldap_get_entries($ldap, $result);
      
    for ($i=0; $i<$info["count"]; $i++)
    {
        if($info['count'] > 1) {    
            break;
        }
        echo "<p>You are accessing <strong> ". $info[$i]["sn"][0] .", " . $info[$i]["givenname"][0] ."</strong><br /> (" . $info[$i]["samaccountname"][0] .")</p>\n";
        $getname = $info[$i]["displayname"][0];
        $_SESSION['displayname'] = $getname; //เอาไปแสดงหน้าอื่นๆ เรียก echo  $_SESSION['displayname'] ได้เลย
        header("location:test_verify.php?username=$username");
        echo '<pre>';
        //var_dump($info);
        echo '</pre>';
        $userDn = $info[$i]["distinguishedname"][0];
    }
    ldap_close($ldap);
    echo $getname;
} else {
    //$msg = "Invalid email address / password";
    $msg = ldap_error($ldap);
     echo '<script language="javascript">';
            echo 'alert("Wrong username or password!! Please try again.")';
            echo '</script>';
            echo "<meta http-equiv='refresh' content='0;URL=student_login.php?username=".$_REQUEST['username']."' />";
    echo $msg;
}
?>