A technology information site run by an active frontend engineer. The design is based on the character "Bukiusagi" (Weapon Rabbit), and it publishes information on the latest Web development and frontend technologies.
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November 29th, 2025
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November 29th, 2025
The Complete Guide to PHP File Operations: Reading, Writing, Uploading, CSV Processing, and Security Measures Explained in Depth
- PHP
A must-read for developers working with files in PHP. This guide comprehensively explains the practical knowledge essential for real-world development, covering everything from the basics like fopen and file_get_contents, to security measures for image uploads, reading and writing CSV files, directory operations, and robust error handling strategies.
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November 27th, 2025
Mastering Date and Time in PHP: A Comprehensive Guide from Basics to Advanced Techniques
- PHP
This guide covers everything from obtaining the current date and time, the mechanism of timestamps, customizing date and time formats, and handling international time across time zone boundaries, to advanced techniques like date calculation and comparison. We also explain how to choose safe and modern date and time functions, avoiding deprecated ones. It's packed with practical knowledge to level up your PHP development skills.
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November 23rd, 2025
Differences between POST and GET Every PHP Developer Should Know: When to Use Which and Key Considerations
- PHP
We'll explore the fundamental difference: GET sends data via the URL, while POST uses the request body. This guide provides practical PHP examples and essential security tips for handling sensitive data like passwords.
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November 23rd, 2025
What are Web Sessions? Mechanisms, PHP Implementation, and Security
- PHP
An in-depth explanation of "Sessions," an essential component of websites. We detail the underlying mechanisms, including the crucial differences from Cookies, where data is stored, and how it is managed. From concrete PHP implementation examples and timeout causes to must-know security measures for developers, this single guide covers everything you need to fully understand sessions.
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November 23rd, 2025
PHP Cookies Explained: Mechanism, Setup, and Precautions for Beginners
- PHP
A step-by-step guide to maintaining site visitor state, including the specific implementation using the setcookie() function. We also thoroughly cover essential Cookie considerations for fundamental Web security.
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November 8th, 2025
The Easiest Way to Use SCSS: How to Use “Live Sass Compiler”
- CSS
Get started with efficient web development! This guide covers the installation and usage of the VS Code extension "Live Sass Compiler," including project-specific configuration methods.
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November 8th, 2025
What is PHP Database?
- PHP
Master the Basics of Database Operations with PHP! This guide covers everything from setting up your development environment to establishing a secure connection to MySQL—the standard for web development—using PDO. We'll also explain CRUD operations (INSERT, SELECT, UPDATE, DELETE), which are essential for tasks like creating bulletin boards, using practical code examples.
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October 28th, 2025
Data Validation in PHP
- PHP
We’ll learn the basics of data validation and sanitization for safely handling input data in PHP. This guide explains everything from fundamental concepts to practical coding examples, making it easy for beginners to understand.
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October 19th, 2025
How to Customize the Gutenberg Admin Screen with CSS
- Wordpress
A comprehensive guide to understanding and fixing design inconsistencies between the Gutenberg block editor and the published page in WordPress. Learn how to use editor-style.css and enqueue_block_editor_assets to align the editor preview with the front-end design and improve content publishing efficiency.
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October 19th, 2025
How to Easily Set Up GSAP
- JavaScript
GSAP (GreenSock Animation Platform) is a JavaScript library that makes it easy to create smooth, high-quality web animations. Even complex motions that are difficult to achieve with CSS alone can be expressed freely with just a few lines of code.
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October 18th, 2025
How to use the inline-flex property in CSS
- CSS
A comprehensive guide explaining what inline-flex is from the basics. Learn the differences and proper usage compared to flex, with practical HTML/CSS examples — including how to center icons and text. Perfect for those who want to create flexible inline layouts with precision.
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September 19th, 2025
Beginner’s Guide to Conditional Tags You Can Use on Each WordPress Page
- Wordpress
An introductory guide to WordPress conditional tags (such as is_home, is_page, and is_single), covering both the basics and practical examples for beginners. It also introduces customization methods and key points to note for homepages, posts, and static pages.
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August 21st, 2025
Template Hierarchy of WordPress Themes
- Wordpress
The "Template Hierarchy" is essential for customizing WordPress design. This guide explains the roles of key files, the priority of templates for each page, and practical customization tips for beginners.
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August 18th, 2025
Can You Restore SCSS from Minified CSS? A Guide to Formatting and Rewriting
- CSS
Minified CSS can be reformatted to make it more readable, but it cannot be reverted back to SCSS. Learn why restoration isn’t possible and discover tips for effective reuse.
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August 14th, 2025
WordPress Theme Guide and Customization Methods
- Wordpress
A beginner-friendly guide to choosing and customizing WordPress themes, with a focus on creating and using child themes. Includes tips on free vs. paid themes, the Customizer, widget editing, theme changes, and backups to help you customize safely.
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August 14th, 2025
A Simple and Easy Way to Set Up WordPress in a Local Environment (XAMPP)
- Wordpress
A step-by-step guide to easily setting up WordPress in a local environment using XAMPP. Covers installation, database creation, core file structure, wp-config.php and .htaccess configuration, initial setup, and troubleshooting common errors—all explained in a beginner-friendly way.
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August 14th, 2025
Migrating WordPress from Production to Local via Import
- Wordpress
A guide to safely migrating a WordPress site from a production environment to a local environment. Covers how to use the export/import feature, steps for transferring media, common issues, and troubleshooting tips—all explained in an easy-to-understand way for beginners.
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August 14th, 2025
Data Validation for PHP Forms
- PHP
An easy guide to PHP form validation, covering required fields, data types, dates, regular expressions, and safe HTML output.
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August 4th, 2025
About URL Encoding
- PHP
This article explains what URL encoding is, how it works, and why it is necessary in an easy-to-understand manner. It also covers the differences between PHP’s urlencode() and rawurlencode() functions, important points to watch out for, and how to decode URLs. By understanding these topics, you can ensure safe and correct web communication.
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July 9th, 2025
PHP Processing for Each Form Element
- PHP
A web form allows users to input and submit information. It is created using the HTML form tag, with the submission destination specified by the action attribute. There are two methods to send data: GET, which appends data to the URL, and POST, which hides data within the HTTP request body.
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July 1st, 2025
Creating a Web Form
- PHP
Explanation of the basic mechanism of web forms and how to receive data (GET and POST). Introduced clearly with concrete code examples for beginners.
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June 27th, 2025
About PHP Functions
- PHP
This article provides a detailed explanation of PHP functions from basics to advanced topics. It clearly introduces built-in functions, user-defined functions, and anonymous functions, along with how to use them. It also covers setting default values for arguments, specifying return types, and variable scopes (local, global, and superglobals). Best practices useful for PHP beginners to intermediate users are also explained.
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June 24th, 2025
How to Easily Implement a Lightweight Version of Noto Sans JP
- CSS
We will explain in detail the features of Noto Sans JP, the reasons for its popularity, how to implement it, and tips for speeding up its loading. "Noto Sans JP," often seen in website and app designs, is one of the high-quality Japanese fonts provided by Google.
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June 23rd, 2025
Custom Reset CSS with a Focus on Lightweight Design
- CSS
How to create a custom reset CSS focused on lightweight design. This article explains how to eliminate unnecessary styles while minimizing visual differences between browsers, how to utilize the :where() pseudo-class, and provides practical code examples. A useful reference for designing reset CSS that balances fast rendering and maintainability.
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June 18th, 2025
XAMPP MySQL Won’t Start! A Detailed Guide to Successfully Recover from Errors
- PHP
This article introduces successful recovery methods without reinstalling XAMPP itself, along with specific case examples. It also explains how to check error logs when problems occur.
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June 17th, 2025
LLMO (Large Language Model Optimization)-Aware HTML Coding Method
- LLMO・SEO
In web content and HTML coding, being mindful of LLMO optimization improves the accuracy of information extraction and analysis by AI. For example, structured and clear code is required so that AI in search engines and chatbots can accurately understand the content.
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June 16th, 2025
What is LLMO (Large Language Model Optimization)? Overview and Practical Guide
- LLMO・SEO
LLMO (Large Language Model Optimization) is a method designed and structured to enable generative AI (such as ChatGPT) to correctly understand web content and make it easier to accurately reference and reuse. While SEO aims to rank high on search engines, LLMO focuses on making it easier for AI to incorporate a company's information when generating responses.
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June 11th, 2025
Functions to Sort and Manipulate Arrays in PHP
- PHP
This article provides a clear explanation of useful functions for efficiently sorting and manipulating arrays in PHP. It covers common basic operations such as sorting arrays, adding and removing elements, and searching. Mastering these techniques will help you improve your PHP programming skills.
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June 9th, 2025
About Looping in PHP
- PHP
Looping is used in programs when you want to repeat the same process multiple times. For example, it is useful when you want to display numbers sequentially from 1 to 10 or process the contents of an array one by one. By using loops, you can repeat the code multiple times with just one block of code, making the program concise and easier to maintain.
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June 9th, 2025
About Conditional Statements in PHP
- PHP
An essential part of dynamic content generation is conditional branching. Conditional branching controls the flow of a program and switches processing based on certain conditions.
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June 4th, 2025
About arrays in PHP
- PHP
Arrays in PHP are a convenient data structure that allows you to manage multiple pieces of data together. This guide provides a clear explanation for beginners, covering everything from the basics of arrays to multidimensional arrays, along with practical usage examples and sample code.
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May 27th, 2025
Numeric Operations in PHP
- PHP
A beginner-friendly guide to PHP numeric types, covering operators, rounding, random functions, formatting, and conversions.
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May 21st, 2025
Text manipulation in PHP
- PHP
To help even beginners learn step by step, this guide explains everything from the basics of text manipulation in PHP to practical sanitization methods. Without a proper understanding of string operations, unexpected bugs or character encoding issues may occur.
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April 23rd, 2025
Handling Text in PHP
- PHP
We will explain step by step how to handle strings in PHP. String manipulation is useful in various scenarios such as processing user input, formatting and displaying data from a database, and dynamically constructing HTML.
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April 23rd, 2025
Set up a PHP development environment with XAMPP
- PHP
I will explain how to set up a PHP development environment using XAMPP. XAMPP is a package that includes Apache, MariaDB (previously MySQL), PHP, Perl, and more, all in one, allowing you to easily start development in a local environment. Even beginners can install it without difficulty, making it perfect for learning and testing web application development.
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April 22nd, 2025
PHP variables
- PHP
Variables in PHP are like containers used to temporarily store data and utilize it during the execution of a program. By using variables in PHP, you can store values and easily perform operations such as calculations and string manipulations. In this article, we will explain PHP variables in detail.
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February 1st, 2025
Overview of PHP
- PHP
PHP stands for Hypertext Preprocessor and is a programming language primarily used for building dynamic websites. Since it is released as open-source software, one of its main features is that it can be used free of charge.
The Complete Guide to PHP Errors: Types (Levels), Troubleshooting, and Debugging Techniques
A comprehensive guide to essential error handling skills for PHP development! We explain the causes and specific solutions for the four main types of errors (levels), such as "Parse error" and "Fatal error," illustrated with practical examples. Additionally, this is a must-read for engineers looking to move beyond the beginner stage, covering how to correctly read error messages, what settings to check when errors are not displayed, and efficient debugging methods with recommended tools.