AngularJS ngRoute和PHP $ _SESSION变量

I have 3 pages:

我有3页：

index.php
的index.php
login.php
的login.php
display.php
Display.php的

index.php

Sets up AngularJS using the ngRoute module to navigate my pages.

使用ngRoute模块设置AngularJS以导航我的页面。

login.php

Loaded by default and sets PHP $_SESSION variables.

默认加载并设置PHP $ _SESSION变量。

display.php

Echos the contents of $_SESSION.

回声$ _SESSION的内容。

I navigate to display.php from login.php using a link setup with ngRoute.

我使用与ngRoute建立链接从login.php导航到display.php。

Problem

display.php does not show $_SESSION variables no matter how many times I navigate to and from it. It will only display them if I manually navigate to the page such as refreshing the page or entering the address in the browser.

无论我导航到多少次，display.php都不显示$ _SESSION变量。如果我手动导航到页面（例如刷新页面或在浏览器中输入地址），它将仅显示它们。

I know the php code is executed because I can echo other things to the screen it just doesn't access the $_SESSION variables.

我知道php代码已执行，因为我可以回显其他东西到屏幕上它只是不访问$ _SESSION变量。

Why is this?

为什么是这样？

4 个解决方案

#1

I think i might see where your problem is. You try to access php session in your single page angularJS HTML templates am i right? like:

我想我可能会看到你的问题所在。您尝试在单页angularJS HTML模板中访问php会话我是对的吗？喜欢：

<div ng-repeat="n in <?php $_SESSION['someSessionArray'] ?>">

That is not how it works. Your $_SESSION will never be available in your templates. What you can do, is use an ajax request for your login authentication and have that request give you a session id. Then use that session id when starting your session in further ajax requests (as already mentioned).

这不是它的工作原理。您的$ _SESSION永远不会在您的模板中可用。您可以做的是，使用ajax请求进行登录身份验证，并让该请求为您提供会话ID。然后在进一步的ajax请求中启动会话时使用该会话ID（如上所述）。

Then, when you want to store something to the php session, access the data via ajax request and php service.

然后，当您想要存储某些内容到php会话时，通过ajax请求和php服务访问数据。

a VERY, VERY, VERY, simple Example: inside getFromSession.php

一个非常，非常，非常简单的例子：在getFromSession.php里面

session_start($_GET['session_id']);
$key = $_GET['key']
echo json_encode($_SESSION[$key]);

inside storeToSession.php

在storeToSession.php中

session_start($_GET['session_id']);
$key = $_GET['key'];
$value = $_GET['value'];
$_SESSION[$key] = $value;

inside your login.php

在你的login.php里面

$user = yourAuthMechanism($_GET['username'],$_GET['password']);
if($user) {
  session_start();
  echo json_decode(array('status' => 'success','sid' => session_id()));
}
else { ... error handling

inside anywhere in your angular where you need to access session data:

在您需要访问会话数据的角度内的任何位置：

$promise = $http.get('pathtoyourphp/getFromSession.php?key=foo');
$http.set('pathtoyourphp/getFromSession.php?key=bar&value=4');
// now use promise to acces the data you got from your service

#2

In general, no reason exists, why AngularJS apps, which request PHP-based server-side stuff, won't be able to read $_SESSION.

一般来说，没有理由存在，为什么请求基于PHP的服务器端的AngularJS应用程序无法读取$ _SESSION。

That said, please provide at least the core concepts of of your AngularJS code, so we can provide further details.

也就是说，请至少提供AngularJS代码的核心概念，以便我们提供更多详细信息。

Additionally, put just this in display.php:

另外，将它放在display.php中：

<?

echo __FILE__
   . '<br />' . date( DATE_RFC822 )
   . '<br />' . var_dump( $_SESSION )
   ;

// intentionally skipped dangerous closing PHP-tag

Now run your AngularJS app and tell what comes out.

现在运行你的AngularJS应用程序并告诉它出来了。

#3

Make sure you start the session before reading the SESSION variables.

确保在读取SESSION变量之前启动会话。

<?php
    session_start();
    echo $_SESSION["user9"];
?>

#4

I don't think you're looking for angularJS. I think you're looking for something more like this.

我不认为你在寻找angularJS。我想你正在寻找更像这样的东西。

index.php:

index.php文件：

<html>
    <header>
       <title>Login</title>
    </header>
    <body>
       <form method="POST" action="login.php">
           <input type="username" name="username" placeholder="username" />
           <input type="password" name="password" placeholder="password" />
           <input type="submit" value="Login" />
       </form>
    </body>
</html>

的login.php

<?php
   session_start();
   if(empty($_POST)) {
      die("You don't have permission to be here.");
   } elseif(empty($_POST['username']) or empty($_POST['password'])) {
      die("All fields are required.");
   }

   $username = "admin";
   $password = "password";

   if($_POST['password'] == $password && $_POST['username'] == $username) {
       $_SESSION['loggedIn'] == "true";
       header("Location: show.php");
   } else {
       die("Invalid login");
   }
?>

show.php

 <?php
    if($_SESSION['loggedIn'] == "true") {
        echo "You are logged in";
    } else {
        die("You don't have permission to be here.");
    }
 ?>

#1