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WordPress

How to use Memcached with WordPress

Installing Memcached and configuring WordPress can effectively improve website performance. The specific steps are: first install the Memcached service and PHP extension through the package manager, and restart the web server; secondly enable object caching through plug-ins or manual integration; finally check the cache status through commands and optimize settings such as expiration time, memory allocation, etc. to ensure efficient operation.

Sep 10, 2025 am 04:48 AM

How to add a custom dashboard widget

To add a custom DashboardWidget in the WordPress background, add code in functions.php or plugin. 1. Use the wp_add_dashboard_widget function to register the widget; 2. Write the callback function output content; 3. Add the function by mounting add_action('wp_dashboard_setup'). The sample code can display text or shortcut links, and advanced functions include access to the API, displaying order status, adding cache and permission judgment.

Sep 10, 2025 am 03:34 AM

How to resolve WordPress plugin conflicts

The solution to plug-in conflict is to confirm the source of the problem first and then check it one by one. The first step is to temporarily switch the default theme and clear the cache to eliminate the impact of the theme or cache; the second check the recently installed or updated plug-ins and turn on debug mode to view PHP error information; the third disable plug-in testing one by one to lock the conflict source and record the test results at the same time; the fourth locate specific problems through the server error log or WordPress debugging tool; the fifth update the conflict plug-in or replace it with other similar plug-ins to contact the developer for help if necessary.

Sep 09, 2025 am 04:46 AM

How to use Vagrant for WordPress development

The core of using Vagrant to build a local WordPress development environment is to unify the environment and quickly reproduction. 1. After installing VirtualBox and Vagrant, initialize the project and run vagrantinitubuntu/focal64; 2. Start the virtual machine through vagrantup and log in with vagrantssh to install components such as LAMP or Nginx; 3. Use Shell scripts or Ansible to automatically configure the server; 4. Configure shared folders such as NFS in Vagrantfile to improve performance, and realize the synchronization of host and virtual machine code; 5. Configure port forwarding to access WordPress sites locally; 6. Create a database

Sep 09, 2025 am 03:56 AM

vagrant

How to remove items from the Admin Bar

ToremoveAdminBaritemsinWordPress,identifynodeIDsusingbrowserdevelopertoolsandusetheadmin_bar_menuhookwithremove_node();optionally,applyconditionalremovalbasedonuserroles.First,locateitemIDsviaHTMLinspection,thenimplementcodeinfunctions.phporacustompl

Sep 08, 2025 am 03:02 AM

How to disable XML-RPC in WordPress

To turn off the XML-RPC function in WordPress to improve security, it can be achieved through the following four methods: 1. Use the "DisableXML-RPC" plug-in to disable it with one click, suitable for users without technical background; 2. Add restriction rules to block xmlrpc.php access in .htaccess file, suitable for Apache server; 3. Add PHP code add_filter('xmlrpc_enabled','__return_false'); Force-closing the function, it is recommended to use sub-theme operations; 4. Verify whether it is successfully disabled by accessing xmlrpc.php or using detection tools to verify whether it is disabled successfully

Sep 08, 2025 am 02:46 AM

How to update plugins manually via FTP

The most direct reason for manually updating plug-ins is to solve the problem of insufficient permissions or FTP restriction that cannot be automatically updated. The specific operation is divided into four steps: 1. Download the latest plug-in package and prepare the FTP client and login information; 2. Optionally back up the old plug-in folder just in case; 3. Delete or rename the old plug-in folder; 4. Upload the new plug-in folder to the /plugins/ directory and check the activation status in the background. Notes include checking whether the PHP version meets the standards, confirming that the FTP connection is normal, and troubleshooting the website's white screen problem.

Sep 07, 2025 am 03:40 AM

How to prepare SQL statements securely with wpdb

When writing SQL statements using $wpdb in WordPress development, the prepare() method must be used to prevent SQL injection vulnerabilities. 1. Always use prepare() to process variable insertion to avoid directly splicing SQL strings; 2. Use %d, %s, and %f placeholders to process integers, strings and floating-point numbers respectively, and support passing multiple parameters or arrays; 3. Avoid using esc_sql() instead of prepare() because of its limited security; 4. Use $wpdb->prefix when quoting table names to ensure compatibility with multi-site environments, and add backticks to keywords to avoid syntax errors. These practices can effectively improve the security of database operations.

Sep 07, 2025 am 12:59 AM

How to manage users in multisite

To manage WordPressMultisite users, you must first clarify whether it is global unified management or sub-site independent control. 1. Understand role permissions: Super administrators have full network permissions, site administrators are only allowed to this site, and ordinary users allocate permissions according to roles. It is recommended to grant SuperAdmin permissions carefully and use the UserSwitching plug-in to assist in management. 2. Batch operation: Use MultisiteUserManagement or MainWP plug-in to synchronize roles or batch add users, and use the network background to centrally manage user allocation. 3. Control registration and login: Turn off the global registration option in the settings, combine plug-in to realize invitation registration, email domain restrictions and login jumps, to meet different businesses

Sep 06, 2025 am 03:39 AM

User Management

How to delete a post using the WordPress REST API

To delete a WordPress article, you need to send a DELETE request through RESTAPI and ensure that the authentication and permissions are correct. First, use OAuth or application password to complete the authentication; then send a DELETE request to /wp-json/wp/v2/posts/{id}, and the optional parameter ?force=true is optional to achieve permanent deletion; finally check the response status code such as 200, 204, 403 or 404 to process the result. At the same time, it is necessary to ensure that the user has delete permission and that the article type supports RESTAPI operation.

Sep 06, 2025 am 02:49 AM

How to update WordPress core manually

Manually updating WordPress core files is suitable for situations where server permissions are restricted or need to be carefully controlled. Common methods include: 1. Use WordPress built-in update function (need to be accessible in the background and allowed to be automatically written); 2. Manually replace core files through FTP (need to back up the website and database, upload new versions of wp-includes, wp-admin and root directory files, but retain wp-config.php and wp-content); 3. Update using WP-CLI command line tools (execute wpcoreupdate and wpcoreupdate-db). After the update, you should check the compatibility of the website front desk and backend plug-in themes and page loading status, and clear the

Sep 05, 2025 am 07:57 AM

How to create custom database tables in WordPress

Creating custom database tables in WordPress follows a standard process. 1. Why build a table? When managing a large amount of structured data (such as orders, inventory), it can improve query efficiency, keep the data structure clear and enhance plug-in independence, but simple data should be given priority to using built-in mechanisms. 2. How to build a table? Use the dbDelta function to execute table building code when the plugin is activated, ensure multi-site compatibility through $wpdb->prefix, and correctly write the full field type. 3. How to operate after building the table? Use the $wpdb object to add, delete, modify and check, and use preprocessing to prevent SQL injection. 4. Should I delete the table when deleting the plug-in? Temporary data should be deleted, important data should be retained, and can be accessed through register_unins

Sep 05, 2025 am 07:32 AM

How to prevent brute force attacks on wp-loginphp

Limiting the number of login attempts, changing the default login address, enabling two-step verification, using strong username and password policies, and cooperating with server-level protection can effectively prevent WordPress login pages from being brute-forced. Specific practices include: 1. Use plug-ins to limit the number of login failures, such as locking for 10 minutes after 5 failures; 2. Change the default /wp-login.php address to a path that is not easy to guess, such as /my-secret-login; 3. Enable plug-ins such as Google Authenticator or TwoFactor to achieve two-step verification. It is recommended to use an authenticator app; 4. Set a strong password of more than 12 digits containing upper and lower case letters, numbers and symbols, and avoid using admin

Sep 04, 2025 am 02:07 AM

How to use nonces in WordPress for security

TousenoncesinWordPresssecurely,alwaysgenerateandverifythemforforms,URLs,andAJAXrequests.1.Generateanoncewithwp_create_nonce()orwp_nonce_field()forforms.2.Verifyitusingwp_verify_nonce(),ensuringactionnamesmatch.3.ForAJAX,passthenonceinJavaScriptandval

Sep 04, 2025 am 01:47 AM