Syntax error, unexpected '{' when using the Facebook PHP-SDK

StackOverflow https://stackoverflow.com/questions/8821382

سؤال

I'm trying to get my team's Flash project on Facebook, but I cannot get any of the PHP-SDK examples to work. I've followed several examples, such as this new one on github (here). However, I keep getting a parse error:

Parse error: syntax error, unexpected '{' in /home/content/r/a/s/rashomon/html/projects/facebook/test/hellomyflash/index.php on line 36

I downloaded the latest PHP-SDK. Here's my file structure:

.../hellomyflash/

   index.php

   src/base_facebook.php

   src/facebook.php

   src/fb_ca_chain_bundle.crt

The only two lines I changed in index.php are the appId and secret.

index.php :

<?php
/**
 * Copyright 2011 Facebook, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may
 * not use this file except in compliance with the License. You may obtain
 * a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations
 * under the License.
 */

require '../src/facebook.php';

// Create our Application instance (replace this with your appId and secret).
$facebook = new Facebook(array(
  'appId'  => '###############',
  'secret' => '################################',
));

// Get User ID
$user = $facebook->getUser();

// We may or may not have this data based on whether the user is logged in.
//
// If we have a $user id here, it means we know the user is logged into
// Facebook, but we don't know if the access token is valid. An access
// token is invalid if the user logged out of Facebook.

if ($user) {
  try {
    // Proceed knowing you have a logged in user who's authenticated.
    $user_profile = $facebook->api('/me');
  } catch (FacebookApiException $e) {
    error_log($e);
    $user = null;
  }
}

// Login or logout url will be needed depending on current user state.
if ($user) {
  $logoutUrl = $facebook->getLogoutUrl();
} else {
  $loginUrl = $facebook->getLoginUrl();
}

// This call will always work since we are fetching public data.
$naitik = $facebook->api('/naitik');

?>
<!doctype html>
<html xmlns:fb="http://www.facebook.com/2008/fbml">
  <head>
    <title>php-sdk</title>
    <style>
      body {
        font-family: 'Lucida Grande', Verdana, Arial, sans-serif;
      }
      h1 a {
        text-decoration: none;
        color: #3b5998;
      }
      h1 a:hover {
        text-decoration: underline;
      }
    </style>
  </head>
  <body>
    <h1>php-sdk</h1>

    <?php if ($user): ?>
      <a href="<?php echo $logoutUrl; ?>">Logout</a>
    <?php else: ?>
      <div>
        Login using OAuth 2.0 handled by the PHP SDK:
        <a href="<?php echo $loginUrl; ?>">Login with Facebook</a>
      </div>
    <?php endif ?>

    <h3>PHP Session</h3>
    <pre><?php print_r($_SESSION); ?></pre>

    <?php if ($user): ?>
      <h3>You</h3>
      <img src="https://graph.facebook.com/<?php echo $user; ?>/picture">

      <h3>Your User Object (/me)</h3>
      <pre><?php print_r($user_profile); ?></pre>
    <?php else: ?>
      <strong><em>You are not Connected.</em></strong>
    <?php endif ?>

    <h3>Public profile of Naitik</h3>
    <img src="https://graph.facebook.com/naitik/picture">
    <?php echo $naitik['name']; ?>
  </body>
</html>

I got the same "unexpected '{'" error when following this example.

What am I doing wrong???

هل كانت مفيدة؟

المحلول

Your server is most likely running PHP4, the code provided is for PHP5.

PHP4 does not have try/catch blocks.

نصائح أخرى

If you go in to "facebook.php" and "base_facebook.php", the close tags for php is missing, " ?> " at the bottom of the page. I've heard that this caused problems for some, and it got fixed when they added close tags. You can try ;)

But after seeing the answer from the dude over me, that's probably the correct answer! :p

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