Handling Session ID in PHP using cookie based & URL based

php-session-id-url-based-and-cookie-based.php

<?php
/**
 * Created by PhpStorm.
 * User: ManjeshV
 * Date: 3/9/2015
 * Time: 3:15 PM
 */

// Get current filename
$scriptName =  array_pop(explode('/', $_SERVER['PHP_SELF']));

// check cookie is set or not. and filename is the entry file
if(!isset($_COOKIE['PHPSESSID']) && $scriptName != "php-session-id-url-based-and-cookie-based.php"){
    //
    ini_set("session.use_cookies",1);
    ini_set("session.use_only_cookies",0);
    // Push Session ID to URL
    ini_set("session.use_trans_sid",1);

    // If session ID found in Query Params create server side cookie
    if(isset($_REQUEST['PHPSESSID'])){
        // Set Session ID
        session_id($_REQUEST['PHPSESSID']);
        $_COOKIE['PHPSESSID'] = $_REQUEST['PHPSESSID'];
    }
} else {
    // If Cookie found Assume Browser support cookie and Continue current settings
    ini_set("session.use_trans_sid",0);
}


// Start Session
session_start();