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Technical Articles

CMS Tutorial

How to create a WordPress child theme

The key to creating a WordPress sub-theme is to understand its role and structure. 1. The benefits of using child themes include: modification security, saving development time, and easier maintenance and debugging; 2. The basic steps for creating child themes are: create a new folder and create two files: style.css and functions.php, to ensure that the Template field is consistent with the parent theme folder name, and to load the parent theme and child theme style in functions.php; 3. Advanced skills for child themes include: replacing template files, customizing functions and functions, and using additional file structures; 4. Common precautions include: correctly filling in the topic name and template fields, ensuring that the parent theme style is loaded, and confirming compatibility before updating the parent theme.

Aug 20, 2025 am 03:08 AM

How to build a custom WordPress registration form

TheeasiestwaytocreateacustomWordPressregistrationformisbyusingpluginslikeUserRegistrationorUltimateMember,thoughcustomcodingisanoptionforadvancedusers.①Useapluginforsimplicity,offeringdrag-and-dropformbuilding,conditionallogic,andstylingoptions.②Cust

Aug 19, 2025 pm 06:43 PM

How to scale WordPress hosting

Expanding WordPress hosting solutions requires four aspects: First, upgrade the shared hosting to a VPS or cloud server to improve resource control capabilities and performance; second, introduce page cache, object cache and CDN acceleration to reduce server pressure; third, optimize the database structure, perform data cleaning, splitting and using connection pools; finally, for medium and large sites, load balancing, static resource separation and containerization technologies can be used to achieve multi-site architecture. Each step should be gradually adjusted according to actual traffic and business needs to ensure stable and efficient expansion.

Aug 19, 2025 pm 06:39 PM

How to troubleshoot internal server errors 500

When encountering 500 errors, you should first view the server log 1. View the server log to locate specific error information, such as Apache's error_log, Nginx's logs/error.log and application-level log; 2. Check recent code changes, check for syntax errors, missing dependencies or configuration changes; 3. Verify whether the file permissions and path settings are correct, especially .htaccess and key script permissions; 4. Troubleshoot third-party services or plug-ins, close the test one by one and confirm the availability of external dependencies.

Aug 19, 2025 pm 05:39 PM

500 error 服務(wù)器故障排除

How to use the Admin Bar API

Use AdminBarAPI to extend the WordPress top management bar through the add_node() method to enable quick access to background functions or custom links. 1. When adding main menu items, you need to specify parameters such as id, title, href, and meta, and mount them to the admin_bar_menu hook; 2. When adding submenu, you need to set the parent attribute to the same as the parent node id, and the display order can be controlled by adjusting the hook priority; 3. You can remove the default menu items through remove_node() or remove_menu(); 4. Pay attention to permission control, id uniqueness, multi-language support and debugging skills to improve the compatibility and user experience of plug-ins or themes.

Aug 19, 2025 pm 04:58 PM

How to delete data using wpdb

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.

Aug 18, 2025 pm 12:11 PM

How to secure htaccess file

Protecting the security of .htaccess files requires four aspects: 1. Prohibit public access and restrict direct URL access through server configuration; 2. Set correct permissions such as 644 to prevent tampering; 3. Avoid storing sensitive information such as passwords and keys; 4. Check content changes regularly and make backups.

Aug 18, 2025 am 11:40 AM

How to use wp-configphp defines for debugging

When debugging a WordPress site, you can quickly assist in troubleshooting problems through the definition in the wp-config.php file. 1. Turn on debug mode: define('WP_DEBUG',true); display all PHP error messages, or combine define('WP_DEBUG_LOG',true) and define('WP_DEBUG_DISPLAY',false) to record the errors in the log and not displayed on the page. 2. Disable cache plug-in interference: define('WP_CACHE',false); ensure that the latest content is loaded. 3. Use uncompressed resources: define('SCRIPT_DEBUG',tr

Aug 18, 2025 am 02:30 AM

debug

How to delete orphaned term meta

There are three ways to delete orphaned term metadata: 1. Automatic cleaning using plug-ins, such as BetterSearchReplace or WP-Optimize, which is simple to operate but requires a reliable plug-in; 2. Manually execute SQL statement cleaning, run DELETE commands through phpMyAdmin or database plug-in, which is more thorough but has a higher threshold; 3. Methods to avoid generating orphan data include merging classification rather than directly deleting, using plug-ins or topics that support automatic processing, and regularly maintaining the database to reduce future problems.

Aug 18, 2025 am 01:08 AM

How to secure custom REST API endpoints

Protecting custom RESTAPI endpoints requires starting from four aspects: authentication, permission control, input verification, and monitoring and current limiting. 1. Implement a strong authentication mechanism, such as JWT or OAuth2, and combine HTTPS transmission to reasonably set the token expiration time; 2. Use RBAC to implement fine-grained permission control, perform permission verification at the API layer and add a confirmation mechanism for sensitive operations; 3. Strictly verify all inputs and use built-in tools in the framework to filter sensitive information when output; 4. Deploy monitoring and rate limiting, use Redis to achieve current limiting and analyze abnormal behavior through logs to ensure that the API is safe and controllable.

Aug 17, 2025 am 05:27 AM

Safety rest api

How to back up the WordPress database using phpMyAdmin

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.

Aug 17, 2025 am 03:12 AM

How to add two-factor authentication to WordPress

Toaddtwo-factorauthentication(2FA)toWordPress,1)chooseareliablepluginlikeGoogleAuthenticatororWordfence,2)installandactivateit,3)setup2FAforspecificuserrolesbyscanningaQRcodeandsavingbackupcodes,4)customizeenforcementsettingssuchastrusteddevicesorema

Aug 17, 2025 am 02:26 AM

How to troubleshoot common HTTP errors in WordPress

When an HTTP error occurs in WordPress, you can troubleshoot and fix it by the following methods: 1.500InternalServerError: Check the recently installed plug-in or topic, view the server log, adjust the PHP memory limit, check the file permissions; 2.403Forbidden: Check the file or directory permissions, confirm whether it is blocked by mod_security, check whether there are missing homepage files, check whether the IP is blocked; 3.404NotFound: Refresh the fixed link settings, check the link spelling errors, check the plug-in to interfere with the URL structure, confirm whether the server enables the mod_rewrite module; 4.401Unauthorized and 40

Aug 17, 2025 am 01:17 AM

How to use screen options

ScreenOptions is a key tool to improve computer operation efficiency, mainly including split screen, multi-desktop and window arrangement. Both Windows and macOS systems have corresponding implementations, such as Windows' virtual desktop and macOS' MissionControl. When using split screen, Windows can drag the window to the edge or use the Win arrow keys, while macOS selects the side of the screen by clicking the green button. In terms of setting up multiple desktops, Windows uses Win Tab to create new Windows and switch with Win Ctrl arrow keys, while macOS adds it in MissionControl and clicks to switch. Users can set different uses for each desktop to reduce drying

Aug 16, 2025 am 11:06 AM