How to implement passwordless login
Passwordless login verifies identity through non-password methods. Common solutions include SMS verification code, email link, TOTP, biometrics, etc. The core is to confirm the user's identity in a safer and more convenient way, such as logging in with verification code or clicking on the email link to complete the login. Scenarios need to be considered when choosing: SMS is suitable for the public but has the risk of interception, email is suitable for the web, TOTP is highly secure and suitable for sensitive systems, FIDO2 has the strongest security but has a high technical threshold. Developers need to pay attention to clear user identification, strong verification code random short time, secure storage of tokens, support multi-factor authentication and set up fallback mechanisms. For example, the email login process is: enter the email address → generate a link with token → send an email → click the link → server verification token → create a session
Aug 04, 2025 am 02:40 AM
How to migrate a WordPress database manually
ManualWordPressdatabasemigrationinvolvesfourkeysteps:First,exportyourcurrentdatabaseusingphpMyAdminormysqldumpviaSSH.Second,updateURLsandserializeddataintheexported.sqlfiletoreflectthenewdomainorenvironment.Third,importthemodifiedSQLfileintothenewdat
Aug 04, 2025 am 02:35 AM
How to create custom Walker classes for menus
Custom Walker class can fully control the WordPress menu output structure. 1. Create a new class that inherits Walker_Nav_Menu; 2. Rewrite start_el(), start_lvl() and other methods to customize the HTML structure; 3. Specify custom class instances through the walker parameter in wp_nav_menu() to achieve high customization of menu styles and functions.
Aug 04, 2025 am 02:00 AM
How to set up WordPress multisite
To set up a WordPress multi-site network, please first confirm that the multi-site meets your needs, prepare the WordPress installation file, enable multi-site in wp-config.php, complete the settings through the dashboard, and manage users, themes, and plug-ins. First, evaluate whether multi-sites are suitable for you, such as for shared resources such as school departments or enterprise sub-sites; then make sure WordPress is the latest version and back up the website; then add code in wp-config.php to enable multi-site functionality; then select a subdomain name or subdirectory structure and update the configuration file according to the dashboard prompts; finally, as a "super administrator", manage themes, plug-ins and user permissions uniformly, pay attention to plug-in compatibility issues.
Aug 04, 2025 am 12:12 AM
How to debug performance issues with query monitor
QueryMonitor is an effective tool for debugging WordPress performance issues. After installation and enablement, you can view debugging information at the bottom of the page. 1. After installing and enabling the plug-in, refresh the page and see the panel; 2. Check the number of database queries, time-consuming and repeated queries in the "Queries" tab; 3. Analyze hooks and functions that have long execution time or are called many times through the "Hooks" and "Functions" tab; 4. Check the loading of script style sheets in the "Scripts&Styles" tab to optimize unnecessary resources; 5. Turn on the "SlowQueries" and "PerformanceProfiles" functions to obtain more in-depth performance analysis reports
Aug 03, 2025 am 04:21 AM
How to migrate a single site to multisite
To migrate WordPress single site to multi-site mode, follow the following steps: 1. Add define('WP_ALLOW_MULTISITE',true); enable multi-site function; 2. Select subdomain or subdirectory mode according to needs; 3. Enter the "Network Installation" interface to fill in information and modify the configuration files and .htaccess rules as prompts; 4. After logging in to the background again, check whether the multi-site management interface is normal; 5. Manually activate the themes and plug-ins of each site and test compatibility; 6. Set permissions and security measures to ensure that the super administrator's permissions are controlled; 7. If you need to open registration, you should enable the corresponding options and limit the risk of spam sites. The entire process needs to be operated with caution
Aug 03, 2025 am 01:15 AM
How to clear WordPress cache manually
To clear WordPress cache, you must first confirm the cache method before operating. 1. When using the cache plug-in, log in to the background to find the "Clear Cache" button provided by the plug-in (such as "DeleteCache" or "PurgeAll") and click to confirm the clearing. Some plug-ins support clearing separately according to the page; 2. In the absence of the plug-in, enter the cache directory under wp-content through FTP or file manager to delete the cache file. Note that the path may change depending on the host environment; 3. When controlling the browser cache, press Ctrl F5 (Windows) or Cmd Shift R (Mac) to force refresh the page, or clear the browser history and cache data, or use incognito mode to view the latest inside.
Aug 03, 2025 am 01:01 AM
How to build a custom WordPress login form
The key to creating a custom WordPress login form is to use the wp_login_form() function or write HTML forms manually. 1. Use wp_login_form() to quickly add standard login forms, just insert code and set parameters in the theme file; 2. Manually constructing login forms provides higher flexibility, and you need to write HTML and ensure that the action points to the correct address processing and set jump pages; 3. In terms of security, you need to prevent brute force cracking, enable HTTPS, hide error information, and avoid modifying core files. The two methods have their own advantages and disadvantages, and safety details must be taken seriously.
Aug 03, 2025 am 12:46 AM
How to use contextual help tabs
The key to using context-help tags well lies in time and accuracy. When the user stays in the functional interface, hoveres the question mark icon, or enters a complex page for the first time, the content should be specific and relevant, such as explaining the definition of "special deduction", applicable population and misunderstandings; writing requires a sentence to explain the function, plus examples and precautions, such as when exporting CSV, it is prompted to only export the current page; on visual interaction, the tag should be close to the trigger point, and the disappearance speed is moderate, it can be closed but not forced, and the color font is unified to improve the overall product experience.
Aug 02, 2025 am 05:33 AM
How to increase upload file size limit in WordPress
To solve the problem of WordPress being restricted in uploading large files, you can implement it in the following four ways: 1. Modify the upload_max_filesize, post_max_size and memory_limit parameters in the php.ini configuration file and restart the server; 2. Add the php_value instruction to adjust the limit in the .htaccess file of the Apache server; 3. Define the WP_MEMORY_LIMIT and WP_MAX_MEMORY_LIMIT constants in wp-config.php; 4. Contact the host service provider to request adjustment of the PHP limit. Priority try .htaccess or wp-config
Aug 02, 2025 am 03:28 AM
How to use wp_remote_post
The key to sending requests using wp_remote_post is to master parameter settings and error handling. The basic usage is to pass in URLs and parameter arrays, and the data is placed in the body, and the default is sent in application/x-www-form-urlencoded format; if JSON is required, headers should be set manually and the body should be encoded; error handling must check whether the WP_Error object is returned, and the status code is judged by $response'response'; optional parameters include timeout (default 5 seconds), redirection (default 5 times) and sslverify (response is recommended to enable the production environment); actual application scenarios include calling the second
Aug 02, 2025 am 01:47 AM
How to update themes manually via FTP
Manually updating WordPress themes via FTP is feasible, provided that you are familiar with FTP operations. 1. Download and unzip the latest theme file from the official or trusted source to ensure that you get a "clean" version; 2. Use the FTP client to log in to the server, enter the /wp-content/themes/ directory to find the folder of the currently used theme; 3. Back up the original theme folder before replacing the old file to prevent problems from being restored; 4. Upload the new theme file to the corresponding directory of the server and select overwrite to keep the file structure consistent; 5. After completion, refresh the background to check the update status, and check whether the website front desk and backend page display are normal. The entire process needs to be handled with caution to avoid accidentally deleting or overwriting custom files.
Aug 02, 2025 am 12:57 AM
How to add parameters to shortcodes
The method of adding parameters when using shortcode is implemented in the form of key-value pairs, such as [shortcode_namekey1="value1"key2="value2"]; specific operations include: 1. The parameters are written in the form of key-value pairs, the parameter name is not quoted, and the string value is recommended to be wrapped in double quotes; 2. Set the default value through shortcode_atts() in a custom PHP function and process the passed parameters; 3. Pay attention to the correct spelling of the parameters, set the default value, and ensure that the parameter types match, and the order of the parameters does not affect the result.
Aug 01, 2025 am 02:32 AM
How to customize the search results page
To customize the search engine result page, it can be achieved through browser plug-ins, Google's own tools and search techniques. 1. Use plug-ins such as Stylus to adjust page styles or hide ads; 2. Create an exclusive engine that limits the search scope through GoogleCSE; 3. Use advanced search syntax such as -site:, filetype: and other precise filtering of content; 4. Save search links with specific parameters for reuse.
Aug 01, 2025 am 01:26 AM
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