PHP Sample Code Collection — Basics, Database, HTTP Requests, Email, Technical Utilities, and More

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• PHP Sample Code Collection — Basics, Database, HTTP Requests, Email, Technical Utilities, and More

PHP Sample Code Collection — Basics, Database, HTTP Requests, Email, Technical Utilities, and More

PHP Samples

• Basic

• How to Convert Full-width, Half-width, Katakana, and Hiragana in PHP｜How to Use mb_convert_kana and Complete Option List

  This guide explains how to freely convert full-width, half-width, katakana, and hiragana characters in PHP using the mb_convert_kana function. It also includes practical examples and a complete explanation of each option.

• Handling Dates and Times in PHP — Sample Source Code

  A sample-based guide explaining how to work with dates and times in PHP, including year, month, day, hour, minute, second, and time zones.

• How to Handle JSON in PHP｜Using json_encode and json_decode Safely and Effectively

  A practical guide to handling JSON in PHP, explaining how to use json_encode and json_decode. Covers converting arrays and objects, common pitfalls such as garbled characters or unexpected null values, and important usage tips.

• DataBase

• Connecting to MariaDB with PHP PDO | How to Insert, Update, Delete, and Retrieve Data

  A guide to connecting to MariaDB (MySQL) using PHP PDO and performing data insertion, updates, deletions, and retrieval. Includes secure SQL execution using prepare and execute.

• http,https Request

• HTTP and HTTPS Requests in PHP Using file_get_contents and cURL — Sample Source Code Collection

  A sample-based guide explaining how to perform HTTP and HTTPS requests in PHP using file_get_contents and cURL.

• Sending EMails

• Sending Japanese Emails (JIS or UTF‑8) with PHP’s mb_send_mail

  A source‑code based guide explaining how to send Japanese emails in ISO‑2022‑JP or UTF‑8 using PHP’s mb_send_mail function.

• How to Send HTML Emails in PHP｜Understanding Multipart Structure and Embedded Images

  A concise guide to sending HTML‑formatted emails in PHP, covering multipart message structure, Content‑Type settings, embedded images, and key points to watch out for.

• Technical

• Creating UTF‑8 CSV Files in PHP That Open Correctly in Excel｜Handling Garbled Text, Double Quotes, Leading Zeros, and Line Breaks

  A detailed guide on how to generate UTF‑8 CSV files in PHP that open correctly in Excel. Learn how to prevent character corruption by adding a BOM, properly escape double quotes, preserve numbers with leading zeros, and output line breaks inside cells, with complete code examples.

• How to Generate PDF Files with TCPDF in PHP｜Examples with Japanese Text, Images, and Shapes

  A guide to generating PDF files in PHP using the TCPDF library. Includes examples for handling Japanese text, images, shapes, lines, headers, margins, and more.

• Source Code

• Server Monitoring with PHP and Shell Scripts — Automated Checks Using CRON

  An explanation of how to monitor servers using PHP’s shell_exec along with tools like top and vmstat. Includes scripts that perform periodic checks via CRON to detect zombie processes and high load.

• Image‑based CAPTCHA in PHP (Hiragana, Numbers, Alphabet) — Source Code Included

  This page provides PHP source code for implementing image‑based CAPTCHA for bot protection, including hiragana, numeric, and alphabet verification