将本地WordPress迁移至Bluehost服务器后仅显示‘0’，求助解决

Hey there, sorry to hear you’re stuck with that weird "0" error after migrating your local WordPress site to Bluehost. Let’s break down the most likely fixes—since you’ve already covered the core migration steps, the issue is probably tied to a few overlooked details:

1. Update Your Site URLs in the Database #

WordPress stores your local site’s URL directly in the database, so even if your files are correct, the database might still be pointing to your local setup. Here’s how to fix it:

• Log into your Bluehost cPanel and open phpMyAdmin under the Databases section.
• Find your migrated database, then navigate to the wp_options table (note: your table prefix might be different if you changed it locally).
• Look for the siteurl and home rows—update their option_value fields to your live Bluehost site’s full URL (e.g., https://yourdomain.com).
• If you have tons of internal links or media references pointing to your local URL, use WP-CLI (available in Bluehost’s terminal) to safely update all instances:

  wp search-replace 'http://localhost/your-local-site' 'https://your-live-site.com' --skip-columns=guid
  

  This avoids breaking your post GUIDs, which are important for WordPress.

2. Fix File Permissions #

Incorrect permissions after uploading/unzipping files are a common culprit for blank or erroring pages. Bluehost recommends these settings:

• Folders should be set to 755
• Files should be set to 644
• To adjust this:
  1. Open Bluehost’s File Manager and navigate to public_html.
  2. Select all files and folders, right-click, then choose Change Permissions.
  3. Enter the numbers above, check "Recurse into subdirectories" for folders, and save.

3. Rule Out Plugin/Theme Conflicts #

Your local plugins or theme might have hardcoded local paths or compatibility issues with the live server:

• Plugins: Rename the wp-content/plugins folder to wp-content/plugins-old via File Manager. This deactivates all plugins. If the site loads, rename the folder back and activate plugins one by one to find the problematic one.
• Themes: Rename your active theme’s folder (e.g., wp-content/themes/your-theme to your-theme-old). WordPress will automatically switch to a default theme like Twenty Twenty-Four. If this fixes the error, your theme has a path or compatibility issue.

4. Double-Check wp-config.php #

Even if you updated it once, it’s worth verifying your wp-config.php has the exact credentials from Bluehost:

• Confirm DB_NAME, DB_USER, and DB_PASSWORD match the database you created on Bluehost.
• Check DB_HOST—Bluehost usually uses localhost, but sometimes it’s a specific hostname (you can find this in cPanel under "MySQL Databases").
• For a quick test, add these lines to your wp-config.php to override the database URL settings temporarily:

  define('WP_HOME','https://yourdomain.com');
  define('WP_SITEURL','https://yourdomain.com');
  

5. Check Server Error Logs #

The "0" error is often a silent PHP error. Bluehost lets you access logs to get specifics:

• In cPanel, go to Errors under the Advanced section, or check Raw Access Logs.
• Look for entries around the time you tried to access the site—this might show a missing file, PHP version mismatch, or memory limit issue.

6. Verify PHP Version Compatibility #

Make sure your Bluehost server’s PHP version matches what you used locally. WordPress recommends PHP 8.0 or higher:

• In cPanel, go to MultiPHP Manager to check or change the PHP version for your site.
• If your local site used an older PHP version, switching to that temporarily can help identify compatibility issues with plugins/themes.

内容的提问来源于stack exchange，提问作者naw_its_cool_bruh