在不使用表单或页面 URL 的情况下在两个 PHP 页面之间传递变量 [英] Pass variables between two PHP pages without using a form or the URL of page

问题描述

我想将几个变量从一个 PHP 页面传递到另一个页面.我没有使用表格.变量是目标页面出现问题时将显示的一些消息.如何将这些变量传递给其他 PHP 页面，同时保持它们不可见?

例如假设我有这两个变量:

//原始页面$message1 = "一条消息";$message2 = "另一条消息";

我想将它们从 page1.php 传递到 page2.php.我不想通过 URL 传递它们.

//我不要'page2.php?message='.$message1.'&message2='.$message2

有没有办法(也许通过 $_POST?)发送变量?如果有人想知道为什么我希望它们不可见，我只是不想要一个带有&message=Problem while uploading your file. This is not a valid .zip file"这样的参数的大 URL 地址，我不想要有很多时间来改变我的页面的重定向以避免这个问题.

解决方案

Sessions 将是您不错的选择.从PHP手册中查看这两个示例:

<块引用>

page1.php 代码

第2页';?>

<块引用>

page2.php代码

清理事情 - SID 是 PHP 的预定义常量，其中包含会话名称及其 ID.SID 值示例:

PHPSESSID=d78d0851898450eb6aa1e6b1d2a484f1

I want to pass a couple of variables from one PHP page to another. I am not using a form. The variables are some messages that the target page will display if something goes wrong. How can I pass these variables to the other PHP page while keeping them invisible?

e.g. let's say that I have these two variables:

//Original page
$message1 = "A message";
$message2 = "Another message";

and I want to pass them from page1.php to page2.php. I don't want to pass them through the URL.

//I don't want
'page2.php?message='.$message1.'&message2='.$message2

Is there a way (maybe through $_POST?) to send the variables? If anyone is wondering why I want them to be invisible, I just don't want a big URL address with parameters like "&message=Problem while uploading your file. This is not a valid .zip file" and I don't have much time to change the redirections of my page to avoid this problem.

解决方案

Sessions would be good choice for you. Take a look at these two examples from PHP Manual:

Code of page1.php

<?php
// page1.php

session_start();

echo 'Welcome to page #1';

$_SESSION['favcolor'] = 'green';
$_SESSION['animal']   = 'cat';
$_SESSION['time']     = time();

// Works if session cookie was accepted
echo '<br /><a href="page2.php">page 2</a>';

// Or pass along the session id, if needed
echo '<br /><a href="page2.php?' . SID . '">page 2</a>';
?>

Code of page2.php

<?php
// page2.php

session_start();

echo 'Welcome to page #2<br />';

echo $_SESSION['favcolor']; // green
echo $_SESSION['animal'];   // cat
echo date('Y m d H:i:s', $_SESSION['time']);

// You may want to use SID here, like we did in page1.php
echo '<br /><a href="page1.php">page 1</a>';
?>

To clear up things - SID is PHP's predefined constant which contains session name and its id. Example SID value:

PHPSESSID=d78d0851898450eb6aa1e6b1d2a484f1

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