如何使用会话将值从一个php页面传递到另一个 [英] how to pass value from one php page to another using session

问题描述

我可以将值从一页传递到另一页，但是我需要像这样传递值，

I can pass values form one page to another but I need to pass value like this,

第1页:

Page4.php

Page4.php

Page3.php

Page3.php

我需要将Page1.php的文本字段中的值传递给Page2.php的文本字段，因为该表单没有直接重定向到Page2，所以我无法传递该值，我尝试了会话，表单发布方法和其他几种方法，但我尚未成功.

I need to pass the value in a text field in the Page1.php to a text field in Page2.php, since the form is not directly redirectly to page2, I am unable to pass the value, I tried session, form post method and few other methods but I am yet to succeed.

如果您可以帮助我提供代码或一些建议，我将非常高兴.

I would be very happy if you can help me with the code or some suggestions.

谢谢！

编辑..........

Edit..........

我找到了答案，感谢您的帮助，这实际上是我的一个粗心的错误，我使用$ _post而不是$ _session.

I found the answer, thanks for the help, it was actually a careless mistake on my part, I used $_post instead of $_session.

它现在正在工作.

感谢您的帮助.

推荐答案

使用类似这样的内容:

page1.php

page1.php

<?php
session_start();
$_SESSION['myValue']=3; // You can set the value however you like.
?>

任何其他PHP页面:

<?php
session_start();
echo $_SESSION['myValue'];
?>

但是要记住一些注意事项:您需要在输出，HTML，回声-甚至空格之前调用session_start().

A few notes to keep in mind though: You need to call session_start() BEFORE any output, HTML, echos - even whitespace.

您可以继续更改会话中的值-但只能在第一页之后使用 -这意味着，如果您在第1页中进行了设置，则将无法使用直到进入另一页面或刷新页面.

You can keep changing the value in the session - but it will only be able to be used after the first page - meaning if you set it in page 1, you will not be able to use it until you get to another page or refresh the page.

可以通过多种方式之一来设置变量本身:

The setting of the variable itself can be done in one of a number of ways:

$_SESSION['myValue']=1;
$_SESSION['myValue']=$var;
$_SESSION['myValue']=$_GET['YourFormElement'];

如果要在出现潜在错误之前检查变量是否已设置，请使用以下代码:

And if you want to check if the variable is set before getting a potential error, use something like this:

if(!empty($_SESSION['myValue'])
{
    echo $_SESSION['myValue'];
}
else
{
    echo "Session not set yet.";
}

这篇关于如何使用会话将值从一个php页面传递到另一个的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！