Login session error

 <?php 
 <?php 
 
 
 /*Code for token generation Flexydial Security Purpose*/
 /*Code for token generation Flexydial Security Purpose*/
-session_start();
+
 function randomPassword() {
 function randomPassword() {
     $alphabet = "abcdefghijklmnopqrstuwxyzABCDEFGHIJKLMNOPQRSTUWXYZ0123456789";
     $alphabet = "abcdefghijklmnopqrstuwxyzABCDEFGHIJKLMNOPQRSTUWXYZ0123456789";
     $pass = array(); //remember to declare $pass as an array
     $pass = array(); //remember to declare $pass as an array