php 如何跨两个文件访问变量
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How to access a variable across two files
提问by user2688512
I have three files - global.php,test.php, test1.php
我有三个文件 - global.php,test.php,test1.php
Global.php
全局.php
$filename;
$filename = "test";
test.php
测试文件
$filename = "myfile.jpg";
echo $filename;
test1.php
测试1.php
echo $filename;
echo $filename;
I can read this variable from both test and test1 files by
include 'global.php';
我可以从 test 和 test1 文件中读取这个变量
include 'global.php';
Now i want to set the value of $filenamein test.phpand the same value i want to read in test1.php.
现在我想设置$filenamein的值test.php和我想读入的相同值test1.php.
I tried with session variables as well but due to two different files i am not able to capture the variable.
我也尝试使用会话变量，但由于两个不同的文件，我无法捕获该变量。
How to achieve this........
如何实现这一点......
Thanks for help in advance.....
提前感谢您的帮助......
回答by MaxEcho
Use:
用：
global.php
全局.php
<?php
if(!session_id()) session_start();
$filename = "test";
if(!isset($_SESSION['filename'])) {
$_SESSION['filename'] = $filename;
}
?>
test.php
测试文件
<?php
if(!session_id()) session_start();
//include("global.php");
$_SESSION['filename'] = "new value";
?>
test1.php
测试1.php
<?php
if(!session_id()) session_start();
$filename = $_SESSION['filename'];
echo $filename; //output new value
?>
回答by Nathan Srivi
First you start session at the top of the page.
首先，您在页面顶部开始会话。
Assign your variable into your session.
将您的变量分配到您的会话中。
Check this and Try it your self
检查这个并自己尝试
test.php
测试文件
<?php
session_start(); // session start
include("global.php");
$filename = "myfile.jpg";
$_SESSION['samplename']=$filename ; // Session Set
?>
test1.php
测试1.php
<?php
session_start(); // session start
$getvalue = $_SESSION['samplename']; // session get
echo $getvalue;
?>
