PHP集成Google Index API遇500空白页错误求助

Let's work through your 500 error issue step by step—since you can't use Composer on your Chromebook, we'll focus on fixing the manual setup problems.

1. First: Reveal the Actual Error (No More Blank Page) #

A 500 error with a blank page usually means PHP is suppressing errors. Add these lines at the very top of your index.php to see what's going wrong:

ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);
error_reporting(E_ALL);

This will show you the specific error message (like a missing file, invalid path, or authentication issue) instead of just a blank screen.

2. Fix the Autoloader Path & Reference #

Your current autoload setup is using a deprecated compatibility file, and the path is likely incorrect. Here's how to fix it:

• If you downloaded the full Google API Client Library (including the vendor directory), update your require line in index.php to point to the correct autoloader:

  require_once 'google-api-php-client/vendor/autoload.php';
  

• Remove the old src/Google/autoload.php reference entirely—this file is only for backwards compatibility and triggers deprecated warnings that can break your script.

3. Correct the Service Account File Path #

Your index.php is already in the /indexapi/ directory, so your current path indexapi/service_account_file.json is looking for a file at /indexapi/indexapi/service_account_file.json (which doesn't exist). Simplify it to:

$client->setAuthConfig('service_account_file.json');

4. Fix the API Request Format #

Your raw JSON string might cause formatting issues, and you're missing the required Content-Type header. Update your request code to:

// Use json_encode to ensure valid JSON
$content = json_encode([
    "url" => "https://myurl2020.com",
    "type" => "URL_UPDATED"
]);

// Add the Content-Type header so Google recognizes the JSON body
$response = $httpClient->post($endpoint, [
    'headers' => ['Content-Type' => 'application/json'],
    'body' => $content
]);

5. Double-Check Prerequisites #

Don't forget to confirm these critical steps from the official docs:

• The service account from your JSON key has been added as an owner of your site in Google Search Console.
• The URL you're submitting (https://myurl2020.com) is verified in Search Console under the same property.

Full Modified Code Example #

Here's what your index.php should look like after all fixes:

ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);
error_reporting(E_ALL);

require_once 'google-api-php-client/vendor/autoload.php';

$client = new Google_Client();
$client->setAuthConfig('service_account_file.json');
$client->addScope('https://www.googleapis.com/auth/indexing');

$httpClient = $client->authorize();
$endpoint = 'https://indexing.googleapis.com/v3/urlNotifications:publish';

$content = json_encode([
    "url" => "https://myurl2020.com",
    "type" => "URL_UPDATED"
]);

$response = $httpClient->post($endpoint, [
    'headers' => ['Content-Type' => 'application/json'],
    'body' => $content
]);

$status_code = $response->getStatusCode();
print_r($response);
echo "\n";
echo "$status_code";

If you still get errors after these changes, share the specific error message from the screen—this will help narrow down remaining issues like authentication failures or permission problems.

内容的提问来源于stack exchange，提问作者Seb