Minor - format code, update code.

main/inc/lib/chamilo_session.class.php

@@ -35,7 +35,7 @@ class ChamiloSession extends System\Session
      * Generate new session instance
      * @return ChamiloSession
      */
-    static function instance()
+    public static function instance()
     {
         static $result = null;
         if (empty($result)) {
@@ -48,13 +48,12 @@ class ChamiloSession extends System\Session
      * Returns the session lifetime
      * @return int The session lifetime as defined in the config file, in seconds
      */
-    static function session_lifetime()
+    public static function session_lifetime()
     {
         global $_configuration;
         return $_configuration['session_lifetime'];
     }
 
-
     /**
      * Starts the Chamilo session.
      *
@@ -67,7 +66,7 @@ class ChamiloSession extends System\Session
      * @param  string variable - the variable name to save into the session
      * @return void
      */
-    static function start($already_installed = true)
+    public static function start($already_installed = true)
     {
         /*
          * Prevent Session fixation bug fixes
@@ -122,7 +121,7 @@ class ChamiloSession extends System\Session
      * Session start time: that is the last time the user loaded a page (before this time)
      * @return int timestamp
      */
-    function start_time()
+    public function start_time()
     {
         return self::read('starttime');
     }
@@ -132,7 +131,7 @@ class ChamiloSession extends System\Session
      * load time + a number of seconds
      * @return int UNIX timestamp (server's timezone)
      */
-    function end_time()
+    public function end_time()
     {
         $start_time = $this->start_time();
         $lifetime = self::session_lifetime();

main/inc/lib/system/session.class.php

@@ -16,7 +16,7 @@ class Session implements \ArrayAccess
     /**
      * @param string $variable
      * @param null $default
-     * @return null
+     * @return mixed
      */
     public static function read($variable, $default = null)
     {
@@ -50,7 +50,7 @@ class Session implements \ArrayAccess
      * Returns true if session has variable set up, false otherwise.
      *
      * @param string $variable
-     * @return mixed value
+     * @return bool
      */
     public static function has($variable)
     {
@@ -67,6 +67,9 @@ class Session implements \ArrayAccess
         $_SESSION = array();
     }
 
+    /**
+     * Destroy session
+     */
     public static function destroy()
     {
         session_unset();
@@ -87,7 +90,7 @@ class Session implements \ArrayAccess
      * If offset does not exists returns null. Do not trigger a warning.
      *
      * @param string $offset
-     * @return any
+     * @return mixed
      */
     public function offsetGet($offset)
     {
@@ -114,7 +117,7 @@ class Session implements \ArrayAccess
 
     /**
      * @param string $name
-     * @return mixed
+     * @return bool
      */
     public function __isset($name)
     {
@@ -143,5 +146,4 @@ class Session implements \ArrayAccess
     {
         self::write($name, $value);
     }
-
 }