If there is any problem after updating WordPress theme, you can roll back the old version to resolve. Method 1: Manually install the old version of the theme. You need to download the corresponding .zip file and upload it to the background to activate. Pay attention to backup settings in advance. Method 2: Use plug-ins such as WPDowngrade to manage the version, which supports direct switching and viewing of logs in the background, but some old versions still need to bring their own links. Notes include: be sure to back up website data, confirm the compatibility of the old version, prioritize operation in the test environment, and retain the current file reference modification content.

TofetchpostsusingtheWordPressRESTAPI,usethebasicendpointhttps://your-wordpress-site.com/wp-json/wp/v2/posts.1.Filterpostsusingqueryparameterslikeper_page,orderby,andordertocustomizeresults.2.Usethe_embedparametertoincluderelateddatasuchasfeaturedimag

If your WordPress website is hacked, you should immediately enter maintenance mode and follow the steps to troubleshoot and repair it. 1. First check whether the website has abnormal behavior, such as unknown links, jumps, strange accounts or slowing down, and set the website to maintenance mode; 2. Replace all login credentials, including background passwords, FTP, database and control panel information, and delete suspicious users; 3. Use security plug-ins to scan malicious code, check key files and plug-in themes, and reinstall core files if necessary; 4. Update and strengthen website security, keep the system updated, delete useless plug-in themes, install security plug-ins, and back up data regularly to prevent being attacked again.

To back up the WordPress database, it can be done via phpMyAdmin. First, log in to the host control panel, find phpMyAdmin and enter the interface; secondly, select the corresponding database, and use the Export tag to select Quick to export the SQL file; finally save the file to local, external hard disk or cloud storage, and it is recommended to name the file by date for identification. The backup process is simple but attention should be paid to details.

Use $wpdb to delete WordPress database data to be operated through the $wpdb->delete() method. The steps are: 1. Get the global $wpdb object; 2. Specify the data table name to be deleted. It is recommended to use $wpdb->prefix to ensure compatibility; 3. Set an array of deletion conditions to ensure accurate WHERE conditions; 4. Optionally pass in formatting parameters such as %d or %s, and automatically recognize them if they are not passed. Notes include: confirming the prefix of the table name, avoiding error deletion, backup or test before execution, and controlling user permissions. The common problems are to enable debugging to view error logs, support deleting multiple records at a time, and do not recommend splicing SQL statements directly to avoid causing security risks.

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.

WP-CLIprovidesefficientcommandstomanageWordPressoptionswithoutSQLqueriesby1)usingwpoptionlisttoviewalloptions,2)wpoptiongettoretrievevalues,3)wpoptionaddtocreatenewoptions,4)wpoptionupdateformodifications,and5)wpoptiondeletetoremovethem.Youcanalsoupd

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