Add CSRF token to password change page

includes/functions.php

@@ -1,5 +1,25 @@
 <?php
 
+/**
+*
+* Add CSRF Token to form
+*
+*/
+function CSRFToken() {
+?>
+<input type="hidden" name="csrf_token" value="<?php echo $csrf_token; ?>" />
+<?php
+}
+
+/**
+*
+* Validate CSRF Token
+*
+*/
+function CSRFValidate() {
+  return hash_equals($_POST['csrf_token'], $_SESSION['csrf_token']);
+}
+
 /**
 *
 * @param string $input