php - 处理 php 中已弃用的错误

Question

我遇到errors的这些问题如何解决php

Deprecated: Function session_register() is deprecated in C:\xampp\htdocs\mysite\forum part two\login.php on line 62

Deprecated: Function session_register() is deprecated in C:\xampp\htdocs\mysite\forum part two\login.php on line 63

我在第 62 行和第 63 行的代码分别如下

session_register("username", $username);
session_register("password", $password); 

提前致谢

Answer 1

来自文档：

<?php
// Use of session_register() is deprecated
$barney = "A big purple dinosaur.";
session_register("barney");

// Use of $_SESSION is preferred, as of PHP 4.1.0
$_SESSION["zim"] = "An invader from another planet.";

Answer 2

改用超全局$_SESSION。

$_SESSION['username'] = $username;

Answer 3

在向浏览器输出任何内容之前，将其放在session_start();脚本/页面的最顶部，并将这些行替换为：

$_SESSION['username'] = $username;
$_SESSION['password'] = $password;

Answer 4

$_SESSION['username'] = &$username;

为了复制功能，您需要存储对变量的引用。