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Technical Articles

CMS Tutorial

How to resolve mixed content warnings HTTPS

Mixed content warnings are security prompts when HTTPS web pages are loaded with HTTP resources. Solutions include using relative protocols, updating links, replacing third-party resources, setting redirection, using CSP protection, and paying attention to cache, CDN configuration and plug-in issues. 1. Use the relative protocol starting with // to automatically adapt HTTPS; 2. Change the hard-coded HTTP link to HTTPS; 3. Contact a third party to provide HTTPS resources or find alternatives; 4. Forced HTTPS jump to HTTPS on the server configuration; 5. Use Content-Security-Policy to prevent non-HTTPS resources from loading; 6. Troubleshoot cache, CDN errors and old plug-ins to ensure a comprehensive fix.

Aug 16, 2025 am 03:30 AM

How to create custom archive templates

To customize WordPress archive page templates, 1. You need to understand the naming rules such as archive.php is a general archive page, category.php is used for categories, tag.php is used for tags, etc.; 2. Create or edit archive.php file and add titles, article loop structure and style; 3. Copy the general template for specific categories or tags and naming new files according to slug for customization; 4. You can create page templates with TemplateName annotations to achieve more flexible control, and customize the output content through WP_Query.

Aug 15, 2025 am 08:26 AM

Custom template 存檔模板

What is the minimum MySQL version for WordPress

WordPressrunsbestwithMySQL5.6orhigherbecauseolderversionslike5.0maycauseperformanceandcompatibilityissues.MySQL5.6 offersbetterInnoDBsupport,performanceimprovements,andsecurityenhancements.Beforeupgrading,checkplugin/themecompatibility,hostingprovide

Aug 15, 2025 am 01:59 AM

How to handle database transactions

A database transaction is a set of database operations that are regarded as a whole, with ACID characteristics (atomicity, consistency, isolation, persistence) to ensure data accuracy and consistency. For example, deducting and adding money during transfer must be successful or failed at the same time. The basic process of a transaction is: start a transaction (BEGINTRANSACTION;), perform SQL operations, commit (COMMIT;) or rollback (ROLLBACK;). Common concurrency problems include dirty reading, non-repeatable reading, phantom reading, and missing updates. They can be solved by setting appropriate isolation levels (such as read not submitted, read submitted, repeatable reading, serialization). When using transactions, you should try to shorten the transaction time, access tables in sequence, catch exceptions and roll back in time, and keep logging for

Aug 15, 2025 am 01:04 AM

How to fix critical errors reported by site health

"Serious errors" in website health checks must be fixed immediately to avoid affecting operation or safety. The core of the solution is to clarify the content of the error, understand its importance and handle it in an orderly manner. Common types and response methods are as follows: 1. The "redirect loop" problem should check whether the htaccess file configuration, fixed link settings, cache plug-in or CDN conflicts, and confirm that the domain name and HTTPS settings are correct; 2. The PHP version is too old and needs to be upgraded to 8.0 or higher, backup and test compatibility before switching, contact the developer in time or find alternatives if there is any problem; 3. When the plug-in or theme is incompatible, the recently updated or installed plug-in should be disabled, or the plug-in folder is renamed through FTP is deactivated. The theme problem can be temporarily switched to the default theme troubleshooting and updated or replaced regularly

Aug 15, 2025 am 12:57 AM

How to integrate with OAuth providers

Key steps for OAuth integration: 1. Select providers such as Google, Facebook, etc., register to obtain ClientID and keys; 2. Configure a secure and compliant callback address, and use a local address during the development stage, and use a formal domain name online; 3. Implementing the authorization process includes jumping to the authorization page, processing return code, back-end token replacement, and obtaining user information; 4. Processing user mapping and login status, associate database unique ID, and managing JWT issuance and refresh mechanisms.

Aug 14, 2025 pm 03:37 PM

How to update a post using the WordPress REST API

To update articles using WordPressRESTAPI, you need to send a POST or PUT request with authentication to the corresponding endpoint and attach the update data. First, ensure correct verification. It is recommended to use the application password or OAuth1.0a to avoid using basic authentication. Secondly, find the correct endpoint format as /wp-json/wp/v2/posts/{post_id}, and replace it with the actual article ID; then prepare the request body, including fields such as title, content, status, etc., and use cURL or tool to send the request; finally handle the response and error, check the return status code and information, and troubleshoot problems such as authentication failure and JSON format errors. Authentication is correct, path is accurate, data format is correct

Aug 14, 2025 pm 02:26 PM

How to delete orphaned post meta

Orphanedpostmeta is metadata that has not been cleaned after articles in WordPress are deleted, they occupy database space and affect performance. Orphan data will be generated when the post_id in the postmeta table is manually deleted, plug-in operation is improper, or data migration causes the post_id in the postmeta table to not exist in the posts table. The inspection method includes running SQL queries or scanning with plug-in. The deletion method includes manually executing SQL commands or cleaning them with one-click through plug-ins such as WPOptimize and AdvancedDatabaseCleaner. It is recommended to reduce orphan data generation by deleting articles in the background, using reliable plug-ins, and regularly cleaning, and automatic cleaning tasks can be set up to maintain database efficiency.

Aug 14, 2025 pm 12:47 PM

How to use themejson for block themes

theme.json can centrally manage global styles and settings of block themes. Its core approach includes: 1. Master the basic structure, including three main parts: version, settings and styles; 2. Define the color palette, font family and available units in settings; 3. Set the default style for global or specific blocks (such as paragraphs and titles) in styles; 4. Use presets to automatically generate CSS class names, and enable custom color support. Through these steps, you can unify the display effects in the editor and improve the efficiency of theme development.

Aug 14, 2025 am 11:20 AM

How to use the site health tool

Website health tools can help users quickly locate website problems and optimize performance. First, find the tool entrance such as WordPress's "Website Health" menu; second, check the overall score and core indicators such as PHP version, error log and database status; then check for performance issues that affect loading time, image compression and caching mechanism and optimize; finally, it is recommended to review regularly every month, especially after updating plug-ins, changing servers or publishing a large amount of content, to ensure the stable operation of the website.

Aug 13, 2025 am 09:46 AM

How to understand WordPress action and filter priority

Understanding WordPress's action and filter priority is actually to figure out "when should you do what". In WordPress development, action and filter are two types of hooks, which allow you to insert your own code at a specific time. The priority determines the execution order of these hooks. By default, if you do not specify priority, it will use the default value of 10. But when you need to control the execution sequence between multiple hooks, priority becomes very important. The basic difference between Action and Filter Action: It is executed when an event occurs.

Aug 13, 2025 am 05:08 AM

How to use webpack for Gutenberg blocks

TouseWebpackeffectivelyforbuildingcustomGutenbergblocks,startbyinstallingWebpackandnecessaryloaderssuchasbabel-loader,css-loader,andstyle-loader.1)Setupabasicwebpack.config.jswithentryandoutputpaths,handlingJSviaBabelandCSSwithappropriateloaders.2)Fo

Aug 13, 2025 am 01:53 AM

How to use WP_Query to fetch posts

WP_Query is the core class used in WordPress to obtain articles and supports multiple query conditions. 1. The basic usage includes defining parameters such as 'post_type' and 'posts_per_page' and creating instances; 2. You can filter articles by category ID, classification slug or tags; 3. Support custom article types and filtering through custom fields, such as 'meta_key' and 'meta_value'; 4. Advanced functions include comparison operators and sorting options such as 'orderby' and 'order'; 5. Pay attention to avoid common errors when using, such as using query_posts() and forgetting to call wp_reset_postdat

Aug 13, 2025 am 01:38 AM

How to authenticate with the WordPress REST API

ToauthenticatewiththeWordPressRESTAPI,youcanchoosefromseveralmethodsdependingonyourusecase.1.UseBasicAuthenticationforlocaldevelopmentortestingbyinstallingtheApplicationPasswordsplugin,generatinganapppassword,andincludingyourusernameandpasswordinrequ

Aug 12, 2025 am 05:03 AM