introduction to session

libs/includes/Session.class.php

+<?php
+class session {
+    public static function start() {
+        session_start();
+    }
+    public static function unset() {
+        session_unset();
+    }
+    public static function destroy() {
+        session_destroy();
+    }
+    public static function set($key, $value) {
+        $_SESSION[$key] = $value;
+    }
+    public static function delete($key) {
+        unset($_SESSION[$key]);
+    }
+    public static function isset($key) {
+        return isset($_SESSION[$key]);
+    }
+    public static function get($key, $default = false) {
+        if (Session::isset($key)) {
+            return $_SESSION[$key];
+        } else {
+            return $default;
+        }
+    }
+}

libs/load.php

@@ -3,6 +3,8 @@
 include_once "includes/Mic.class.php";
 include_once "includes/Database.class.php";
 include_once "includes/User.class.php";
+include_once "includes/Session.class.php";
+Session::start();
 //this function load all the file
 function load_templates($name) {
     // print("including $name.php");

sg.php

+<pre>
+<?php
+include "libs/load.php";
+
+// print("_SERVER\n");
+// print_r($_SERVER);
+// print("_GET\n");
+// print_r($_GET);
+// print("_POST\n");
+// print_r($_POST);
+// print("_FILES\n");
+// print_r($_FILES);
+// print("_COOKIE\n");
+// print_r($_COOKIE);
+
+// print("_SESSION");
+// print_r($_SESSION);
+/**
+ * 
+ *before the object class is used
+ */
+
+// if(isset($_GET['clear'])){
+
+//      print("clearing.....");
+//      session_unset();
+// }
+
+// if(isset($_SESSION['a']))
+// {
+//     print("\na already exists... value :$_SESSION[a]");
+// }
+// else
+// {
+//     $_SESSION['a']=time();
+//     print("\nassigning new value ...:$_SESSION[a]");
+// }
+// if(isset($_GET['destroy']))
+// {
+//     print("destroying.....");
+//     session_destroy();
+// }
+/**
+ * after the object class is used
+ */
+print("_SESSION");
+print_r($_SESSION);
+
+if(isset($_GET['clear'])){
+
+     print("clearing.....");
+     Session::unset();
+}
+
+if(Session::isset('a'))
+{
+    print("\na already exists... value :".Session::get('a')."\n");
+}
+else
+{
+    Session::set('a',time());
+    print("\nassigning new value ...:".Session::get('a')."\n");
+}
+if(isset($_GET['destroy']))
+{
+    print("destroying.....");
+    Session::destroy();
+}
+
+?>
+</pre>
\ No newline at end of file

test.php

 <?php
 include "libs/load.php";
-// print("_SERVER\n");
-// print_r($_SERVER);
-// print("_GET\n");
-// print_r($_GET);
-// print("_POST\n");
-// print_r($_POST);
-// print("_FILES\n");
-// print_r($_FILES);
-// print("_COOKIE\n");
-// print_r($_COOKIE);
+
 // testing the signup function
 // if (signup("sam", "password", "sam@123", "6369239993")) {
 //     echo "success";