更新WordPress文章时自动跳转到wp-admin/post空白页求助

Hey there, let’s work through this frustrating issue where updating a post sends you to a blank wp-admin/post page. Here are the most common fixes to try, ordered from easiest to more involved:

1. Rule Out Plugin Conflicts #

This is the #1 culprit for most WordPress admin oddities:

• Go to Plugins > Installed Plugins in your WP admin.
• Select all plugins, choose "Deactivate" from the bulk actions dropdown, and click "Apply".
• Try updating your post again. If it works, reactivate plugins one by one, testing the post update after each activation. The plugin that breaks it is the one causing the issue—either update it, replace it, or contact its developer for support.

2. Test with a Default WordPress Theme #

Custom themes can have faulty code that breaks post updates:

• Go to Appearance > Themes.
• Activate a default theme like Twenty Twenty-Four.
• Attempt to update your post. If the problem goes away, your theme has an issue—check for theme updates, or review any custom code snippets you added to functions.php.

3. Enable Debugging to Find the Root Error #

Blank pages almost always hide a PHP error. Let’s reveal it:

• Access your site files via FTP or cPanel File Manager.
• Open wp-config.php and find the line that says define('WP_DEBUG', false);.
• Change it to:

  define('WP_DEBUG', true);
  define('WP_DEBUG_LOG', true);
  define('WP_DEBUG_DISPLAY', false);
  

• Now try updating your post again. Then check the wp-content/debug.log file—this will show you exactly what’s causing the error (e.g., a missing function, memory limit hit, or corrupted file).

4. Increase PHP Memory Limit #

Low memory can cause partial page loads or blank screens:

• In wp-config.php, add this line right above /* That's all, stop editing! Happy publishing. */:

  define('WP_MEMORY_LIMIT', '256M');
  

• If that doesn’t help, contact your hosting provider to increase the memory_limit value in your server’s php.ini file.

5. Reinstall WordPress Core Files #

Corrupted core files might be the issue:

• Download the latest version of WordPress from wordpress.org.
• Extract the ZIP file, then delete the wp-content folder and wp-config-sample.php from the extracted files.
• Upload the remaining files to your server via FTP, overwriting the existing core files (don’t worry—this won’t touch your posts, themes, or plugins).
• Test the post update again.

Relevant Screenshots from Your Report #

Let me know if any of these steps resolve your issue, or share the debug log details if you need help interpreting them!

内容的提问来源于stack exchange，提问作者jackmin