Deprecated: Function session_register() is deprecated解决办法

<?php
// Fix for removed Session functions
function fix_session_register(){
    function session_register(){
        $args = func_get_args();
        foreach ($args as $key){
            $_SESSION[$key]=$GLOBALS[$key];
        }
    }
    function session_is_registered($key){
        return isset($_SESSION[$key]);
    }
    function session_unregister($key){
        unset($_SESSION[$key]);
    }
}
if (!function_exists('session_register')) fix_session_register();
?>

session_register( “abc” ) ;

改成

$_SESSION['abc'] = null;