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- Monitoring MySQL Performance with Prometheus and Grafana
- To monitor MySQL using Prometheus and Grafana, you need to first deploy mysqld-exporter to expose MySQL metrics; 1. Install mysqld-exporter (recommended Docker startup and configuration connection information); 2. Add job to grab exporter data in the Prometheus configuration file; 3. Import community templates (such as ID7386) in Grafana to display monitoring charts; 4. Pay attention to key indicators such as connection number, slow query, buffer pool usage, query volume, and configure alarms.
- Mysql Tutorial . Database 189 2025-08-06 00:24:01
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- What is the noscript tag in HTML and how is it used
- Tags are displayed when JavaScript is not executed and are used to provide alternative content for users who do not support or disable JavaScript. 1. Prompt information such as "Please enable JavaScript", 2. Provide static resources as a downgrade replacement for dynamic functions, 3. Load styles or meta information when there is no JS, 4. Enhance accessibility and SEO, but cannot be used for security control, and modern search engines can execute JavaScript, so their SEO function has been weakened, ultimately ensuring that the website is still available and the information is complete in a JavaScript-free environment.
- HTML Tutorial . Web Front-end 487 2025-08-06 00:21:02
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- Implement URL rewrite using .htaccess: Remove ?q= parameter
- This article aims to explore in-depth how to use Apache's mod_rewrite module to rewrite dynamic URLs containing ?q= parameters (such as https://example.com/?q=something) through the .htaccess file to a more concise and friendly static appearance URL (such as https://example.com/something). The article will explain in detail the issues in common rewrite rules that may lead to "index.php" loop rewrites and provide a robust solution including sample code and key considerations to ensure the correctness and efficiency of rewrite rules.
- PHP Tutorial . Backend Development 147 2025-08-06 00:00:05
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- Using Jetstream and Spatie to implement user roles and permission management in Laravel 8
- This article aims to provide a detailed set of guides for Laravel 8 project developers to seamlessly integrate and leverage Spatie's Laravel Permission package to achieve powerful user role and permission management capabilities in projects that have integrated Jetstream authentication systems. We will dive into how to add Spatie to existing projects, resolve compatibility issues with Jetstream, and provide detailed steps and code examples to help developers build flexible and scalable permission control systems, including role-based permission allocation and permission overrides for individual users.
- PHP Tutorial . Backend Development 515 2025-08-05 23:57:01
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- Rewrite URL with .htaccess: Remove ?q= parameter and solve internal rewrite problems
- This article explains in detail how to use Apache's mod_rewrite module, and rewrite the URL like example.com/?q=something to example.com/something through the .htaccess file. The focus is on analyzing the problems caused by the common RewriteRule configurations that cause index.php display, and provides professional solutions to avoid internal rewriting and correctly handle URLs, ensuring the implementation of elegant URLs.
- PHP Tutorial . Backend Development 662 2025-08-05 23:51:00
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- Apache .htaccess URL rewriting tutorial: Remove ?q= parameter and avoid common pitfalls
- This tutorial explains in detail how to use Apache's .htaccess file to rewrite the ?q= parameter in the URL into a concise path form, such as converting /?q=something to /something. The article delves into why common rewrite rules RewriteRule ^(.*) index\.php?q=$1 causes index.php errors, and provides a professional solution to effectively avoid this problem by optimizing the regular expression ^([^.]*)$ while ensuring that static resources are not affected.
- PHP Tutorial . Backend Development 836 2025-08-05 23:48:01
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- WordPress User Metadata Computing and Dynamic Update: A Practical Guide to Implementing Derived Fields
- This tutorial explains in detail how to calculate and automatically update the derived user metadata based on the form data submitted by the user in WordPress. The article will cover key steps from user metadata acquisition, data type conversion, correct update to code implementation, and aim to help developers avoid common mistakes, manage and utilize user data efficiently, and ensure the accuracy and real-timeness of derived fields.
- PHP Tutorial . Backend Development 611 2025-08-05 23:00:01
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- Guide to Dynamic Computing and Update of WordPress User Metadata
- This tutorial explains in detail how to automatically calculate and update relevant custom user metadata based on existing metadata submitted by user front-end forms in WordPress. The article will explore the correct usage of get_user_meta and update_user_meta functions in depth, emphasize the importance of data type conversion, and provide proven code examples to help developers efficiently implement the automated processing and maintenance of user data.
- PHP Tutorial . Backend Development 902 2025-08-05 22:45:01
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- Guide to calculate and automatic update of user metadata after submission of WordPress front-end form
- This tutorial details how to automatically calculate and update new derivative metadata based on saved user metadata after a user submits data through a front-end form in WordPress. The article covers methods for correctly obtaining and updating user metadata, the importance of data type conversion, and the details of code implementation, aiming to help developers efficiently manage and maintain user-related information.
- PHP Tutorial . Backend Development 780 2025-08-05 22:36:01
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- Guide to implementing PHP and databases for automatically updating web content based on date and time
- This tutorial explains in detail how to achieve automatic update of date and time on web pages, especially for scenarios such as radio program schedules. The article covers three main methods: using PHP conditional logic, using PHP arrays to manage program schedules, and dynamic data management through databases. Each method provides detailed code examples and applicable scenario analysis, and discusses how to handle time accuracy, improve maintainability and implement real-time updates, aiming to help developers choose the most appropriate solution based on project needs.
- PHP Tutorial . Backend Development 982 2025-08-05 22:27:01
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- Implementation of automatic update of web content based on date and time: PHP and database driver solution
- This article explains in detail how to use PHP to achieve dynamic content updates based on date and time on web pages, especially suitable for scenarios such as radio program schedules. The article covers the use of simple conditional judgment, scheduling based on PHP arrays to more advanced methods combined with SQL databases, and provides corresponding code examples and practical considerations, aiming to help developers choose the most appropriate implementation solution according to their needs.
- PHP Tutorial . Backend Development 141 2025-08-05 22:18:01
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- Tutorial on automatic update of web content based on date and time
- This article details how to automatically update the displayed content on the web page according to the current date and time, especially for scenes such as radio program lists. The tutorial covers three main implementation methods: simple logic based on PHP conditional judgment, using PHP array to manage program lists, and a more flexible and powerful database driver solution. Through code examples and detailed explanations, readers can master dynamic content display technology in different scenarios, and discuss best practices such as time zone setting and performance optimization.
- PHP Tutorial . Backend Development 928 2025-08-05 22:09:00
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- Dynamic web content update: Date and time-based PHP and database implementation tutorial
- This tutorial will introduce in detail how to use PHP combined with date and time functions to achieve automatic update of web page content, such as displaying different program information according to week and time period. The article covers a variety of methods from simple conditional judgment, using PHP array to managing program schedules, and ultimately using database (SQL) for flexible and scalable program data management, and provides corresponding code examples and precautions.
- PHP Tutorial . Backend Development 123 2025-08-05 21:57:01
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- Automatic update of web content based on date and time: Taking radio program schedule as an example
- This article aims to provide a complete set of tutorials to guide how to use PHP and database technology to achieve automatic date and time updates of web content, especially for scenarios such as radio program schedules that require precise time control. The tutorial will cover a variety of methods from simple conditional judgment to managing programs using arrays to dynamic content management in combination with databases, and provide detailed code examples and practical suggestions to ensure that the content can be displayed dynamically based on current time.
- PHP Tutorial . Backend Development 740 2025-08-05 21:54:01
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