How to display posts from specific categories

The problem that WordPress cannot send emails can be solved through the following steps: 1. Confirm whether the function depends on email; 2. Check and configure the SMTP plug-in; 3. Troubleshoot server restrictions; 4. Check spam and email formats. First, clarify the functions that need to be supported by email, such as registration, password reset, etc., and then send them through plug-in tests; if the configuration is correct and still cannot receive messages, you should check the host restrictions or firewall problems; finally ensure that the email content is standardized and set SPF and DKIM records to improve delivery rate.

The core steps to ensure that the online website does not affect the update before going online are: testing environment verification, backing up complete data, phased operations, and checking before going online. 1. Modify the local or test environment, use Local or Docker to build the same environment and test it before going online, use plug-ins such as Duplicator to copy the website and check the front and back-end functions; 2. Back up the database and files in full, and use UpdraftPlus and other plug-ins, FTP to manually download or host-manager snapshots, and test the backup and restore effectiveness; 3. Go online in stages, first update non-core plug-ins and then process themes and functional plug-ins, and finally refresh the cache, observe for a few minutes after each change to confirm that there are no 500 errors or white screens; 4. Optional settings for maintenance pages, use plug-ins to display them

Enabling WP_DEBUG mode is a key step to troubleshoot WordPress website errors. First, change define('WP_DEBUG',false); to define('WP_DEBUG',true); in wp-config.php to enable debug mode. If you need to record errors instead of displaying them on the page, add define('WP_DEBUG_LOG',true); the error log will be saved in wp-content/debug.log. These settings should be turned off after troubleshooting is completed. Secondly, plug-ins such as WPDebugging or ErrorLogMonitor can be used to simplify management, which provide click-to-start

To identify plug-ins or themes that slow down WordPress websites, first use performance analysis tools such as GTmetrix, GooglePageSpeedInsights, and QueryMonitor to detect the impact of each component; secondly, check the scripts and style sheets loaded in the browser developer tools to identify unnecessary resources; then troubleshoot by switching the default themes and enabling plug-ins one by one; finally pay attention to the frequency of plug-ins updated and user reviews, and avoid using plug-ins that have not been updated for a long time or are frequently complained about the performance.

In WordPress development, the method to safely modify the parent theme template file is to overwrite it through child themes. The first step is to create a file structure in the child theme that is exactly the same as the parent theme template file path. For example, the parent theme has single.php or template-parts/content-single.php, and the child theme also creates files with the same path and file name. 1. Ensure that the path and file names are exactly matched; 2. There is no need to copy all template files, only copy the parts that need to be modified; 3. For topics such as WooCommerce that use template replacement mechanism, you need to confirm whether sub-theme coverage is supported, and store files such as woocommerce/single-p according to the correct path

InstallbbPresspluginfromWordPressdashboardtoaddforums.2.Createforumsandorganizetopicsundercategories.3.Customizesettingsandappearanceviathemeorwidgets.4.Enableuserregistrationandencourageengagementthroughmoderationandstarterposts.

Installing WordPress through Softaculous is the easiest and fastest way. 1. Log in to cPanel to find the Softaculous application portal; 2. Enter the installation interface and click "InstallNow"; 3. Fill in the protocol, domain name, directory, database and other information, set the site title and administrator account; 4. After confirming that it is correct, click "Install" to complete the deployment; 5. After the installation is completed, access the backend and front desk through the provided link to check whether it is normal, pay attention to checking the key information such as directories, account passwords, etc. to avoid errors.

The steps to update WordPress core files using WP-CLI are as follows: 1. Check the current version, execute wpcoreversion to view the current version and use wpcorecheck-update to confirm whether there is any update; 2. It is recommended to back up the database and files before the update, and you can use wpdbexportbackup.sql to export the database; 3. Execute wpcoreupdate to update the core files, or specify the version number to update; 4. Use wpcoreversion to verify the version information after the update is completed; 5. Clean the cache and check the site status, use wpcacheflush to clear the cache, and access the front and backends to ensure no errors and compatibility issues. The whole process is simple and high