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- How to Handle Time Zones in MySQL?
- UseTIMESTAMPforautomatictimezoneconversion;itstorestimeinUTCanddisplaysitinthesession’stimezone.2.AvoidDATETIMEfortime-sensitivedataasitdoesnothandletimezonesandstoresvaluesexactlyasgiven.3.Settime_zonetoUTCgloballyorpersessiontoensureconsistentinter
- Mysql Tutorial . Database 743 2025-08-06 01:14:01
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- Implementing Set and Dictionary Data Structures with PHP Associative Arrays
- PHPassociativearrayscanbeusedtoimplementSetandDictionarydatastructures.1.ForaSet,usearraykeystostoreuniqueelements,enablingO(1)average-timecomplexityforadd,remove,andlookupoperationsviaisset()andunset().2.ForaDictionary,wrapassociativearraysinaclasst
- PHP Tutorial . Backend Development 901 2025-08-06 01:02:01
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- How to create a responsive landing page with CSS?
- Startwithamobile-firstapproachusingtheviewportmetatagandmin-widthmediaqueriestoprogressivelyenhancestylesforlargerscreens.2.UseCSSFlexboxforone-dimensionallayoutsandGridfortwo-dimensionallayouts,adjustingwithmediaqueriesfordifferentdevices.3.Makeimag
- CSS Tutorial . Web Front-end 354 2025-08-06 00:58:00
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- What are the different numeric data types in MySQL and their ranges?
- MySQLsupportsintegertypes(TINYINT,SMALLINT,MEDIUMINT,INT,BIGINT)withsignedandunsignedrangesforwholenumbers.2.Fixed-pointtypesDECIMAL(M,D)andNUMERIC(M,D)storeexactdecimalvalues,idealforfinancialdata,withprecisionupto65digitsandscaleupto30.3.Floating-p
- Mysql Tutorial . Database 397 2025-08-06 00:36:01
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- How to create a responsive login form with CSS?
- StartwithasemanticHTMLstructureusingaformwrappedinacontainer.2.UseCSSFlexboxtocentertheformandensureresponsivenessacrossdevices.3.Styleinputsandbuttonsforusabilitywithfull-widthlayouts,properspacing,andfocusstates.4.Optimizeformobilewithmediaqueriest
- CSS Tutorial . Web Front-end 627 2025-08-06 00:30:01
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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 187 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 146 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 514 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 661 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 834 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 610 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 901 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 777 2025-08-05 22:36:01
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