用PHP替换session_register（）[重复]

Question

This question already has an answer here:

• PHP alternative to session_is_registered 4 answers

I'm getting the following error:

Fatal error: Call to undefined function session_is_registered()

This is my code:

<? session_start($PHPSESSID);
    include_once "includes/config.php";

    if (!session_is_registered("sess_lenguaje")) {
        session_register("sess_lenguaje");
        $_SESSION["sess_lenguaje"] = "es";
    }
    include_once 'lenguaje/'.$_SESSION["sess_lenguaje"].'.php';

?>

I've been searching for the problem and I see that session_register has been removed from the last version of PHP.

So any idea how can I replace my code to make it work?

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Answer 1

Don't use deprecated session_is_registered() function, try below:-

<? session_start($PHPSESSID);
    include_once "includes/config.php";

    if (!isset($_SESSION["sess_lenguaje"])) {
        $_SESSION["sess_lenguaje"] = "es";
    }
    include_once 'lenguaje/'.$_SESSION["sess_lenguaje"].'.php';

?>