note 74114 deleted from function.session-destroy by bobby

Note Submitter: Mr A_A Reason: in docs ---- I hope every body to understand seesion values, and how to work with session, because mostly session used for security reson. try to secure your self with PHP it's great. Note: I used PHP tag only for fantastic the code, <?PHP session_start(); //No Session value set! and session was not destroyed is_array($_SESSION['yoursession'])=== FALSE // True is_null($_SESSION['yoursession']) === TRUE // True isset($_SESSION['yoursession']) === FALSE // True empty($_SESSION['yoursession']) === TRUE // True $_SESSION['yoursession'] == FALSE // True is_array($_SESSION)=== TRUE // True is_null($_SESSION) === FALSE // True isset($_SESSION) === TRUE // True empty($_SESSION) === TRUE // True $_SESSION == FALSE // True ?> <?PHP session_start(); //assume $_SESSION['yoursession']="value"; now we destry all session! $_SESSION=array(); $_SESSION['yoursession'] = array(); session_destroy(); is_array($_SESSION['yoursession'])=== TRUE // True is_null($_SESSION['yoursession']) === FALSE // True isset($_SESSION['yoursession']) === TRUE // True empty($_SESSION['yoursession']) === TRUE // True $_SESSION['yoursession'] == FALSE // True is_array($_SESSION)=== TRUE // True is_null($_SESSION) === FALSE // True isset($_SESSION) === TRUE // True empty($_SESSION) === FALSE // True $_SESSION == TRUE // True ?> Now you can build your own expression if(is_null($_SESSION['yoursession']) === TRUE){ //it means no session is set echo "Welcome Guest!"; } and so on. enjoy!!