WordPress俄文内容显示为问号问题求助（附文章查询代码）

Hey there, let's tackle this Russian text showing up as question marks issue with your WP_Query setup. This is almost always related to character encoding mismatches somewhere in your WordPress stack, so let's go through the key fixes step by step:

1. Verify WordPress & Database Charset Settings #

First, check your wp-config.php file to ensure it's configured for full UTF-8 support (which includes Cyrillic characters):

// Make sure these lines are present and set correctly
define('DB_CHARSET', 'utf8mb4');
define('DB_COLLATE', '');

• utf8mb4 is the recommended charset for WordPress as it supports a wider range of characters than the older utf8 (including all Cyrillic symbols).
• Also, head to your WordPress admin → Settings → General and confirm the "Site Language" is set to Russian (or at least that the page is serving UTF-8 content).

2. Fix Database Table Encodings #

Even if your wp-config is set correctly, your database tables might still be using an outdated charset. Use a tool like phpMyAdmin or your hosting's database manager to:

• Check the wp_posts and wp_postmeta tables (where your 'products' post type data is stored)
• Ensure their charset is set to utf8mb4 and collation is utf8mb4_unicode_ci (or utf8mb4_general_ci as a fallback)

If they're not, run these SQL queries (replace wp_ with your database prefix):

ALTER TABLE wp_posts CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
ALTER TABLE wp_postmeta CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;

3. Ensure Proper Frontend Encoding Headers #

Make sure your theme is telling browsers to use UTF-8. Check your theme's header.php file and confirm this meta tag is present in the <head> section:

<meta charset="UTF-8">

If you want an extra layer of assurance, add this to your theme's functions.php to force UTF-8 headers server-side:

add_action('init', function() {
    header('Content-Type: text/html; charset=utf-8');
});

4. Use WordPress Native Functions for Output #

When displaying your product content, always use WordPress's built-in functions instead of echoing raw post object fields. These functions handle encoding automatically:

• ✅ Do this: echo get_the_title($post->ID); or the_title();
• ❌ Don't do this: echo $post->post_title;
• For custom fields, use get_post_meta($post->ID, 'your_meta_key', true); instead of pulling directly from the database.

5. Fix Server-Level Charset Settings #

Some servers default to non-UTF-8 charsets. Try adding this to your site's .htaccess file:

AddDefaultCharset UTF-8

If you have access to your server's php.ini file, set this line too:

default_charset = "UTF-8"

Start with the first two steps—those are the most common culprits for Cyrillic text turning into question marks. Test after each change to see if the issue is resolved!

内容的提问来源于stack exchange，提问作者Rushanthan