Sessions example

sessions.php

/*-------------------------------------------------------------------------------------------------
Set session helper
-------------------------------------------------------------------------------------------------*/
public static function set_session($key,$value = NULL) {
	$_SESSION[$key] = $value;
}
	
	
/*-------------------------------------------------------------------------------------------------
Get session helper
-------------------------------------------------------------------------------------------------*/
public static function get_session($key, $unset = true) {

	if(isset($_SESSION[$key])) {
		$value = $_SESSION[$key];
		if($unset) unset($_SESSION[$key]);
			return $value;
		}
		
	return NULL;
		
}