How to clean up WordPress revisions

There are three ways to exclude specific categories in WordPress: use query_posts(), use the pre_get_posts hook, or use the plug-in. First, use query_posts() to directly modify the main loop query in the template file, such as query_posts(array('category__not_in'=>array(3,5))), which is suitable for temporary adjustment but may affect paging; second, it is safer to add functions in functions.php through the pre_get_posts hook. For example, excluding the specified classification ID when judging the home page main loop, it will not affect other page logic; finally, WPCate can be used

To clear WordPress cache, you must first confirm the cache method before operating. 1. When using the cache plug-in, log in to the background to find the "Clear Cache" button provided by the plug-in (such as "DeleteCache" or "PurgeAll") and click to confirm the clearing. Some plug-ins support clearing separately according to the page; 2. In the absence of the plug-in, enter the cache directory under wp-content through FTP or file manager to delete the cache file. Note that the path may change depending on the host environment; 3. When controlling the browser cache, press Ctrl F5 (Windows) or Cmd Shift R (Mac) to force refresh the page, or clear the browser history and cache data, or use incognito mode to view the latest inside.

To migrate WordPress single site to multi-site mode, follow the following steps: 1. Add define('WP_ALLOW_MULTISITE',true); enable multi-site function; 2. Select subdomain or subdirectory mode according to needs; 3. Enter the "Network Installation" interface to fill in information and modify the configuration files and .htaccess rules as prompts; 4. After logging in to the background again, check whether the multi-site management interface is normal; 5. Manually activate the themes and plug-ins of each site and test compatibility; 6. Set permissions and security measures to ensure that the super administrator's permissions are controlled; 7. If you need to open registration, you should enable the corresponding options and limit the risk of spam sites. The entire process needs to be operated with caution

get_template_part is a practical function used to reuse code blocks in WordPress theme development. It reduces duplicate code and improves maintainability by loading specified template files. Its basic usage is get_template_part($slug,$name), where $slug is a required parameter to represent the basic template name, and $name is an optional variant name. For example, get_template_part('content') loads content.php, and get_template_part('content','single') preferentially loads content-single.php, if not present, fallback

To realize the display of custom user fields on forums, CMS or user management platforms, the following steps must be followed: 1. Confirm whether the platform supports custom user fields. For example, WordPress can be implemented through plug-ins, Discourse through background settings, and Django through custom models; 2. Add fields and configure display permissions, such as setting field types and visibility in WordPress to ensure that privacy data is only authorized to view by users; 3. Call field values in front-end templates, such as using PHP function get_user_meta() or Django template syntax {{user.profile.city}}; 4. Test the field display effect, verify the access permissions of different roles, and the mobile terminal

Installing WordPress mainly includes the following steps: 1. Prepare the host, FTP login information and FTP client that supports PHP and MySQL; 2. Download and unzip the program package from wordpress.org to ensure that the wp-config-sample.php file is included; 3. Create a database in the host control panel, and create a configuration file wp-config.php with wp-config-sample.php to fill in the correct database information; 4. Use FTP or file manager to upload all WordPress files to the website root directory; 5. Access the domain name in the browser and enter the installation wizard, fill in the site title and administrator account information to complete the installation; 6. Install

To make the website or application comment area cleaner, automatic management should be combined with the program. The specific methods include: 1. Set a keyword blacklist to filter sensitive content, which is suitable for the basic stage but is easily bypassed; 2. Use AI models to identify improper content, understand semantics and improve accuracy; 3. Build a manual review mechanism for user reporting to make up for automation blind spots and enhance user trust. Only by combining these three and dynamic adjustments can we effectively improve the quality of comments.

There are three ways to protect the WordPress backend: 1. Use .htpasswd and .htaccess to add server-layer passwords. By creating encrypted credential files and configuring access control, you cannot enter even if you know the login address and account number; 2. Change the default login address and use plug-ins such as WPSHideLogin to customize the login URL to reduce the risk of being automated attacks; 3. In combination with the IP whitelist restricting access sources, set to allow only specific IPs to access wp-login.php in the server configuration to prevent login attempts at unauthorized locations.