php 7 session,session_unregister()

session_unregister()

(PHP 4, PHP 5 < 5.4.0)

从当前会话中注销全局变量

说明session_unregister(string$name):bool

session_unregister()unregisters the global variable named$namefrom the current session.Warning

本函数已自 PHP 5.3.0 起废弃并将自PHP 5.4.0 起移除。

参数$nameThe variable name.

返回值

成功时返回TRUE，或者在失败时返回FALSE。

注释Note:

If$_SESSIONis used,useunset()to unregister a session variable. Do notunset()$_SESSIONitself as this will disable the special function of the$_SESSIONsuperglobal.Caution

This function does not unset the corresponding global variable for$name, it only prevents the variable from being saved as part of the session. You must callunset()to remove the corresponding global variable.Caution

If you are using$_SESSION(or$HTTP_SESSION_VARS), do not usesession_register(),session_is_registered()andsession_unregister().If globals is on, you'll have to unset the $_SESSION[varname] as well as the $varname.

Like:

unset($_SESSION[varname]);

unset($varname);To unregister some session you can use:

// delete session

$_SESSION['NAME'] = array();

// start session

session_start();

// put info in session

$_SESSION['NAME']['userid'] = 5;

$_SESSION['NAME']['name'] "John Doe";

?>as a side note you must have session_start() set inorder to actually unregister the session varibles.