SSO Login for Freshdesk support portal - PHP Sample Code (Updated)

sso_login_freshdesk.php

<?php
define('FRESHDESK_SHARED_SECRET','____Place your Single Sign On Shared Secret here_____');
define('FRESHDESK_LOGIN_URL','http://{{your-account}}.freshdesk.com/login/sso/');

function getSSOUrl($strName, $strEmail) {
  $timestamp = time();
  $str_to_be_hashed = $strName . FRESHDESK_SHARED_SECRET . $strEmail . $timestamp;

  return FRESHDESK_LOGIN_URL . '?' .
   http_build_query([ // parameters urlencoded by default - www.faqs.org/rfcs/rfc1738.html
    'name' => $strName,
    'hash' => hash_hmac('md5', $str_to_be_hashed, FRESHDESK_SHARED_SECRET)),
    'email' => $strEmail,
    'timestamp' => $timestamp,
   ], '' , '&amp;');
}

header("Location: " . getSSOUrl("User's Name","username@thecompany.com"));