基本 php 程序：警告：session_start() [function.session-start]

发布于 2024-12-11 16:24:25 字数 1294 浏览 2 评论 0原文

我是 Facebook 应用程序开发新手。我创建了一个用于学习的示例应用程序。代码如下。基本上我想打印用户的个人资料名称。如果我能得到这段代码的解释，特别是斜体部分的解释，那就太好了。

enter code here
<html> 
<body>
<h1> Inspirations </h1>
<div id = "quote">
<span id="facebook_stuff">
<div id = "profile_pic"><img src="https://graph.facebook.com/1452321522/picture"      border="0" /> </div>
<?php
 require 'facebook.php' ;
 $facebook = new Facebook(array(
 ‘appId’ => 'my app id',
 ‘secret’ => 'my app secret',
 'cookie' => 'true',

   ));

 $user = $facebook->api('/1452321522');

  ?>
      <div id="profile_name"> <?php echo $user['name'] ?> </div>
   </span>
    "Love is god"
   </div>
    </body>
     </html>

我得到以下输出

灵感

{image}

警告：session_start() [function.session-start]: 无法发送会话 cookie - 标头已发送（输出从 /home/content/04/ 开始） 8471304/html/index.php:5) 在 /home/content/04/8471304/html/facebook.php 第 37 行

警告：session_start() [function.session-start]:无法发送会话缓存限制器 - 标头已发送（输出从 /home/content/04/8471304/html/index.php:5 开始）在 /home/content/04/8471304/html/facebook.php 第 37 行

致命错误：未捕获的 OAuthException：无效的 OAuth 访问令牌签名。扔进 /home/content/04/8471304/html/base_facebook.php 第 970 行

原文

I am new to Facebook app development. I created a sample app for learning. the code is as follows . Basically i want to print the profile name of the user. It will be great if I can get explanation of this code especially for the Italicized section.

enter code here
<html> 
<body>
<h1> Inspirations </h1>
<div id = "quote">
<span id="facebook_stuff">
<div id = "profile_pic"><img src="https://graph.facebook.com/1452321522/picture"      border="0" /> </div>
<?php
 require 'facebook.php' ;
 $facebook = new Facebook(array(
 ‘appId’ => 'my app id',
 ‘secret’ => 'my app secret',
 'cookie' => 'true',

   ));

 $user = $facebook->api('/1452321522');

  ?>
      <div id="profile_name"> <?php echo $user['name'] ?> </div>
   </span>
    "Love is god"
   </div>
    </body>
     </html>

I am getting the following output

Inspirations

{image}

Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at /home/content/04/8471304/html/index.php:5) in /home/content/04/8471304/html/facebook.php on line 37

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /home/content/04/8471304/html/index.php:5) in /home/content/04/8471304/html/facebook.php on line 37

Fatal error: Uncaught OAuthException: Invalid OAuth access token signature. thrown in /home/content/04/8471304/html/base_facebook.php on line 970

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玩套路吗 2024-12-18 16:24:25

对于前两个警告，您尝试在输出已经开始后发送标头（cookie 和缓存限制器），尝试将 php 代码移动到顶部：

 <?php
 require 'facebook.php' ;
 $facebook = new Facebook(array(
 ‘appId’ => 'my app id',
 ‘secret’ => 'my app secret',
 'cookie' => 'true',

   ));

 $user = $facebook->api('/1452321522');

  ?>
<html> 
<body>
<h1> Inspirations </h1>
<div id = "quote">
<span id="facebook_stuff">
<div id = "profile_pic"><img src="https://graph.facebook.com/1452321522/picture"      border="0" /> </div>
<div id="profile_name"> <?php echo $user['name'] ?> </div>
</span>
   "Love is god"
</div>
</body>
</html>

我不能说致命错误，尽管我的预感它与前两个警告有关，或者是因为您传递了“appId”和“secret”的虚拟值（这些值没有正确包含在撇号中，本身可能会生成错误）

For the first two warnings, you're trying to send headers (cookies and cache limiter) after output has already started, try moving the php code to the top as so:

 <?php
 require 'facebook.php' ;
 $facebook = new Facebook(array(
 ‘appId’ => 'my app id',
 ‘secret’ => 'my app secret',
 'cookie' => 'true',

   ));

 $user = $facebook->api('/1452321522');

  ?>
<html> 
<body>
<h1> Inspirations </h1>
<div id = "quote">
<span id="facebook_stuff">
<div id = "profile_pic"><img src="https://graph.facebook.com/1452321522/picture"      border="0" /> </div>
<div id="profile_name"> <?php echo $user['name'] ?> </div>
</span>
   "Love is god"
</div>
</body>
</html>

I can't say as far as the fatal error, although my hunch is that it is related to the first two warnings, or it is because you're passing dummy values for 'appId' and 'secret' (which are not encased in apostrophes proper and might generate an error themselves)

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