This article explains why PHP7 deprecates the mcrypt extension in favor of OpenSSL, compares DES, 3DES, and AES algorithms, clarifies key length choices, outlines common encryption modes, and provides practical PHP code for encrypting and decrypting data with OpenSSL.
This article describes a Redis 5.0 memory leak scenario where 20 million keys with expiration caused memory not to be released, details the investigation steps, findings about the activeExpireCycle, and concludes that memory will eventually be freed, followed by a promotional announcement for a PHP online live class.
This article presents eight highly starred PHP libraries from GitHub—including tools for pinyin conversion, cURL requests, Markdown parsing, HTML‑to‑PDF conversion, document handling, SMS sending, short‑URL generation, and console applications—along with code examples, and concludes with a promotion for an upcoming PHP online training class.
PhpStorm 2022.3 introduces a previewable new UI, expanded Code Vision details, quick‑fix preview, improved PHPDoc rendering, enhanced quick documentation, date‑format tooltips, and comprehensive support for PHP 8.2 features such as readonly classes, deprecated dynamic properties, and DNF types.
This article introduces PhpSpreadsheet—the modern PHP library that replaces PHPExcel—showing how to install it, import necessary namespaces, create a spreadsheet with data, build bar and donut charts, configure gridlines and positions, and finally output the workbook as an XLSX file.
CakePHP 4.4.8, the maintenance release of the 4.4 branch, introduces several bug fixes and enhancements such as aligned scheme handling, improved paginator compatibility, infinite‑loop prevention when creating table classes, better mail assertion, pagination defaults fixes, and refined type hints and API documentation.
This article introduces four classic sorting algorithms—bubble sort, selection sort, insertion sort, and quick sort—explaining their principles and providing complete PHP implementations for each to help readers understand and apply these fundamental techniques.
This article explains how to use PHP's mysqli extension to establish and close MySQL connections, handle connection errors, perform CRUD operations, process query results, execute multiple statements, and manage transactions, providing code examples for each step.
This article explains PHP's two shared memory interfaces, shm and shmop, details the primary shmop functions, provides code examples for creating, reading, writing, and deleting shared memory segments, demonstrates testing with Linux commands, and includes a practical class‑based usage example.
This article explains how to use PECL with the -d php_suffix and -r options to install and uninstall the same extension across multiple PHP versions, and also announces an online PHP training class for beginners to advanced learners.
The article presents eight beginner‑friendly open‑source PHP projects—including HumHub, Flarum, Typecho, Question2Answer, PrestaShop, ActionView, Wizard, and Mochat—providing repository links and brief descriptions, and also announces a PHP development training class with enrollment details.
This article explains why short URLs are useful, describes the principle of mapping short codes to original URLs, and provides two complete PHP implementations—one using MySQL for storage and another using an INI file—along with the necessary rewrite rules for Apache and Nginx.
This article explains the concept of Remote Procedure Call (RPC), demonstrates how to build a lightweight PHP RPC server and client with socket programming, shows the full source code, execution steps, and explains the custom protocol used for cross‑language method invocation.
This article explains the need for globally unique identifiers in modern applications, outlines the essential characteristics of a distributed ID generation service, examines common implementation techniques, and discusses concrete business scenarios such as order numbers, coupons, short URLs, and tracing with practical code examples.
This article walks through the server‑side implementation of iOS In‑App Purchase (IAP) subscription verification, order creation, and automatic renewal handling using PHP, including detailed code for receipt validation, sandbox/production switching, and processing Apple server notifications.
This article explains the fundamentals of message queues, their typical use cases such as decoupling and traffic shaping, compares implementation options like MySQL, Redis, and dedicated message systems, and provides detailed PHP code examples for flash‑sale and RabbitMQ integrations.
The author describes receiving a paid PHP development request, quickly implementing a cURL‑based HTTP client class to handle GET, POST, PUT, and DELETE requests with JSON payloads, and shares the full code to help others solve similar integration problems.
This article explains three PHP techniques for page redirection—using the header() function, outputting a JavaScript location.href script, and inserting a META refresh tag—each with code examples and explanations of how they work and when to use them.
This article introduces the open‑source Pinpoint APM tool for Java micro‑services, explains its architecture and data model, demonstrates deployment options for Tomcat and SpringBoot, and provides a step‑by‑step guide to installing and configuring the Pinpoint PHP agent for end‑to‑end performance monitoring.
The article explains the PHP 8.3 RFC that introduces a built‑in json_validate function, describing its signature, parameters, return values, usage examples, community discussion, reasons for inclusion, and the impact on major PHP projects, while noting its compatibility with the existing json_decode parser.
This guide explains the JWT format, standard and custom claims, signature algorithms, and presents practical single‑token and double‑token renewal schemes—including a WeChat OAuth example—along with a complete PHP implementation using the tinywan/jwt library.
This article explains the concept of in‑memory PHP trojans, provides simple obfuscated source code that deletes itself and persists in RAM, discusses their stealth characteristics, and offers a basic mitigation strategy of terminating the process and removing the generated files.
This article explains how to build a tree‑based sensitive‑word detection algorithm in PHP, discusses the challenges of correctly iterating over multibyte strings, and provides a complete implementation with code examples that handle Unicode characters efficiently.
This article explains various one‑line PHP webshell payloads, compares eval and assert functions, and demonstrates multiple obfuscation methods such as XOR, base64, rot13, concatenation, custom function wrappers, variable variables, class‑based tricks, and version‑specific payloads to bypass WAFs and antivirus detection.
This article explains the CGI protocol, how PHP implements it, the advantages of FastCGI as a persistent process manager, and how php-fpm extends FastCGI to provide smoother configuration changes and improved performance for PHP web applications.
A PHP vulnerability (CVE-2022-31628) allows uncontrolled recursive decompression of specially crafted gzip files, leading to infinite loops and resource exhaustion, affecting PHP versions 7.4.31, 8.0.0‑8.0.24, and 8.1.0‑8.1.11, and can be mitigated by upgrading to patched releases.
This article explores various PHP one‑line webshell payloads, compares eval and assert functions, and presents multiple evasion techniques such as XOR, base64, rot13, string concatenation, variable obfuscation, and version‑specific tricks to bypass WAFs and antivirus detection.
Facing occasional traffic spikes and high server costs, the author migrated a holiday gift‑distribution project from an ALB‑ECS‑MySQL‑Redis stack to Alibaba Cloud Function Compute, detailing cost reductions, zero‑idle‑instance savings, custom runtime setup, logging adjustments, VPC networking, deployment via Serverless Devs, and domain binding.
This article provides a step‑by‑step tutorial on using the MongoDB PHP driver to insert, query, update, and delete documents in the ‘wj’ collection of the ‘test’ database, including full code examples for each CRUD operation.
The first release candidate of PHP 8.2.0 (RC1) has been published, introducing trait constants, a new Random extension, enhanced JIT support, updated MIME types for the built‑in web server, memory optimizations, new socket and Curl options, additional ZipArchive methods, and several performance and cross‑platform improvements.
This article explains the five SOLID object‑oriented design principles—Single Responsibility, Open/Closed, Liskov Substitution, Interface Segregation, and Dependency Inversion—while also promoting a PHP online training program that covers modern web technologies and offers enrollment via QR code or contact details.
Learn step‑by‑step how to build a cost‑effective, pay‑per‑use WordPress website on Alibaba Cloud Serverless using Function Compute, NAS storage, RDS, and SLS, covering service activation, NAS setup, function configuration, custom domain binding, code deployment, and final verification.
This article provides a collection of reusable PHP functions for checking, creating, listing, copying, and deleting files and directories, offering developers ready‑to‑use code snippets that simplify common filesystem operations in backend projects.
This article explains the common pain points of local development and provides a step‑by‑step guide on installing Docker, Docker‑Compose, and Laradock, configuring environment files, setting up Nginx and host entries, and running containers to create a consistent, portable development environment.
This article provides PHP code snippets to determine the HTTP request method—such as GET, POST, PUT, DELETE, PATCH—and to check for AJAX requests, offering a quick reference for developers implementing RESTful APIs in a backend environment.
This article introduces MongoDB as a popular NoSQL database, explains its schema‑free, collection‑oriented design, storage format, and platform support, and provides a complete PHP class that implements common CRUD and aggregation operations for MongoDB.
Version 4.4.5 of the open‑source CakePHP framework, which implements ActiveRecord, Association Data Mapping, Front Controller and MVC patterns, has been released, introducing enhanced SMTP authentication error handling, restored parameter display in debug stack frames, API documentation upgrades, a fix for diffForHumans() localization, and deprecation of ValidatableInterface.
This article explains how to configure RabbitMQ queue priority, defines reusable PHP base, service, and client classes, and demonstrates running the code to send and consume prioritized messages using the PhpAmqpLib library.
This tutorial explains the producer‑consumer principle using RabbitMQ, provides a reusable PHP base class for queue connections, and demonstrates how to create service and client classes to send and receive messages, followed by step‑by‑step instructions to run the code and view the queue.
This article walks through practical techniques for bypassing PHP's disable_functions, hiding attacker IPs, creating encrypted bash reverse shells, maintaining persistence with cron and screen, probing outbound ports, setting up internal network proxies, and cleaning forensic traces, all aimed at penetration testing and red‑team operations.
This article demonstrates how to use ThinkPHP5's built‑in Validate class to define validation rules and scenes, create a simple HTML form for data submission, and process the input in a backend controller, providing complete code examples for each step.
This tutorial walks through installing Elasticsearch 8.2, configuring the PHP client via Composer, creating a MySQL articles table, indexing its rows into Elasticsearch, and performing basic CRUD operations such as retrieving, deleting, and searching documents using PHP code.
This article explains how to start PHP's built‑in HTTP server for local testing, keep it running after the terminal closes by using nohup, and notes the default log file and production‑environment limitations.
Time management in programming spans human concepts of time, language-specific handling of zones and timestamps, 32‑bit overflow risks, sync versus async processing, log timestamping, business‑level period calculations, and common pitfalls, emphasizing that mastering these nuances prevents bugs, improves performance, and enables reliable analytics.
This article explains how to obtain a user's IP address on the server side, use the Taobao IP database or the open‑source ip2region library to map the IP to province and city, and demonstrates integration in Java, PHP and Laravel with sample code and performance details.
This article outlines the major new features of PHP 8 and PHP 7, explains why PHP 7 outperforms PHP 5, describes the execution flow, web‑request lifecycle, underlying architecture, data structures, garbage‑collection mechanism, and the PHP‑FPM master‑worker model with optimization tips.
Facing constant port scans and malicious login attempts on a public server, the author outlines a self‑developed IP filtering solution that automatically adds trusted IPs to a whitelist, featuring multi‑process support, concurrency, daemon mode, a web management panel, traffic statistics, and interception logging.
This free public roadmap guides beginners through essential front‑end fundamentals, rapid PHP onboarding, and optional advanced topics, providing curated course titles and direct links to help learners quickly master web development with PHP.
This article explains the Inversion of Control (IoC) principle, contrasts a tightly coupled logging implementation with a dependency‑injected version in PHP, and demonstrates how passing a logger via the constructor decouples classes and follows the open‑closed principle.
This article presents a step‑by‑step tutorial on creating a drag‑and‑drop captcha, covering the project repository, visual examples, underlying logic, PHP and JavaScript APIs, installation via Composer, and a link to the original detailed guide.
This article provides a detailed overview of the major features introduced in PHP versions 5 through 8, including autoloading, PDO, MySQLi, namespaces, traits, built‑in server, scalar type declarations, nullable types, JIT compilation, named arguments, union types, match expressions, and many useful code examples.
This tutorial explains how to create a Dockerfile for a PHP‑Apache project, build the image, run the container, verify its status, and use volume mounting and exec commands to manage the application inside the container.
This article explains how the PHP in_array() function can return misleading results when the strict comparison flag is omitted, demonstrates the issue with a simple code example, and shows the correct usage as well as a comparable JavaScript approach using indexOf().
This article explains the Observer design pattern, outlines its advantages and drawbacks, and demonstrates practical implementations through three real‑world scenarios—weather forecasting, payment processing, and data subscription—providing complete Java and PHP code samples that illustrate subjects, observers, and notification mechanisms.
This guide explains how to replace the default PHP 5.6 with PHP 7.3 on a Linux server by editing the system profile, updating the PATH variable, and reloading the profile, including the necessary command-line steps and code snippets.
The article outlines PHP 8.2's upcoming QA releases, the July 19 feature‑freeze deadline, newly accepted RFCs such as standalone false/null and true types, deprecation of is_callable, DNF types, and provides links to downloads, Docker images, source code and related proposals.
This article explains the insertion sort algorithm, describes how it repeatedly inserts each element into its correct position in a growing sorted portion of the array, and provides a complete PHP function that sorts a numeric array while preserving stability.
The PHP RFC introduces readonly classes, allowing all properties of a class to be immutable, prohibiting dynamic and static properties, and providing reflection support, with examples, restrictions, inheritance rules, and compatibility notes, helping developers write safer, more robust code.
This article explains symmetric encryption concepts, lists common algorithms, and demonstrates how to use PHP's mcrypt extension to perform DES and AES encryption and decryption in various modes with complete code examples.
This article explains the Bubble Sort algorithm, its O(n²) time and O(1) space complexities, describes the step‑by‑step sorting process, provides a complete PHP implementation, and shows sample input and output to illustrate how the algorithm orders data.
The LNMP one‑click installation package V1.9 adds support for Rocky Linux, AlmaLinux, CentOS Stream 9 and several Chinese Linux distributions, introduces PHP 8.1, new PHP extensions, MySQL 5.7/8.0 binaries, IPv6 and ZeroSSL options, and provides detailed management commands for deploying and maintaining Nginx, MySQL, PHP and related services.
This article demonstrates how to set up an Nginx location block that proxies image requests to a PHP watermark service, provides a complete PHP Watermark class implementation, and shows a usage example for applying watermarks to images on the fly.
This article presents a PHP class that implements common algorithms such as Fibonacci (recursive and iterative), directory scanning, binary search, bubble sort, quick sort, and the first LeetCode problem, along with a completed‑vs‑TODO list for future extensions.
The article explains replay attacks, describes how using a timestamp, a nonce, or a combination of both can protect API requests, and provides complete PHP code examples for signing and verifying requests to ensure each call is accepted only once.
The article details the challenges of PHP invoking Java interfaces, compares two existing solutions, and presents a comprehensive refactoring approach that automates code conversion, resolves generic parsing and sandbox debugging issues, and reduces the integration steps from eight to three for more efficient backend development.
This article explains key high‑concurrency web concepts such as QPS, throughput, and response time, then details traffic and server optimizations, load‑balancing strategies (L4/L7, Nginx, LVS), CDN fundamentals, process/thread/coroutine models, asynchronous I/O, PHP Swoole concurrency, and database caching techniques for scalable backend systems.
This article compares the PHP web frameworks Laravel and Yii, detailing their core features, installation requirements, validation, routing, CRUD generation, extensions, migrations, testing, security, and documentation, and provides scored evaluations to help developers choose the most suitable framework for their projects.
This article explains the fundamentals of JSON, its syntax rules, and demonstrates how PHP's json_encode and json_decode functions convert between arrays and JSON strings, including examples of sequential, non‑sequential, and multidimensional arrays, and the effect of the associative‑array option.
The article explains how PHP functions like exec(), system(), passthru(), popen(), backtick operator, shell_exec() and pcntl_exec() can be abused for OS command injection, demonstrates vulnerable code examples, and provides practical mitigation techniques to secure web applications.
This article introduces MDword, a PHP library for programmatically creating Word documents, outlines its recent updates, compares it with PHPWord, and provides step‑by‑step installation and usage examples including code snippets for template processing, image insertion, and document saving.
This article explains what cross‑origin (CORS) is, how the browser's same‑origin policy restricts scripts, lists allowed tags, describes common cross‑origin scenarios, and provides practical PHP header code, proxy techniques, and Nginx reverse‑proxy configurations to resolve CORS issues.
SAPI++ is an open‑source multi‑application, multi‑tenant SaaS framework built on ThinkPHP 6.x, offering out‑of‑the‑box installation, API authentication, menu integration, and support for various front‑end technologies; the article details its features, advantages, required environment, and directory layout for developers.
This article explains several PHP weak‑type pitfalls—including MD5 hash collisions, improper handling by is_numeric, unexpected behavior of in_array and switch, and intval casting quirks—showing how they can lead to security problems such as hash collisions, SQL injection, and logic errors.
This article evaluates several PHP approaches—including plain inserts, unsigned mode, MySQL transactions, file locks, and Redis queues—to prevent product inventory overselling under high concurrency, presenting test setups, results, and a final recommendation favoring Redis for its superior performance.
This article explains various methods to prevent XSS injection in PHP, covering the limitations of built‑in filters, proper use of htmlspecialchars and htmlentities, replacement techniques, and provides comprehensive PHP functions with code examples for sanitizing user input and removing malicious scripts.
This guide shows how to connect an Epson TM‑T88IV thermal receipt printer to a Raspberry Pi Zero W, install a PHP ESC/POS library, configure udev rules, set up a GitHub webhook via ngrok, and automatically print issue details as receipts.
The article covers DJI’s denial of aiding Russia, the latest features in GitLab 14.9, the official launch of React 18 with its new concurrent capabilities, and a developer’s creative project that prints GitHub issues using a Raspberry Pi‑connected receipt printer.
This article explores several methods for creating PHP extensions—including native C, Zephir, php-cpp, php-x, and CGO—provides sample code, describes compilation steps, and compares their execution speed using a Fibonacci benchmark with and without PHP JIT.
Learn how to install MeiliSearch via Docker, add documents using the PHP SDK, and perform both basic and custom searches, including typo tolerance and highlighted results, with step‑by‑step commands and code examples.
This article explains PHP's Trait feature, showing how to use it for multiple inheritance, resolve method and property conflicts with insteadof and as, combine multiple Traits, and leverage advanced capabilities such as abstract methods and static members, all illustrated with complete code examples.
This article provides a comprehensive PHP form validation tutorial, covering required and optional fields, validation rules using regular expressions, secure handling of user input with trim, stripslashes, and htmlspecialchars, prevention of XSS via $_SERVER['PHP_SELF'] sanitization, and includes complete example code for both the HTML form and processing script.
This article explains why PHP dominates web development, outlines the operational burdens of traditional LAMP/LNMP stacks, and shows how serverless Function‑as‑a‑Service platforms—especially Alibaba Cloud's Custom Runtime—enable PHP applications to run without managing servers, scale elastically, and simplify deployment with practical examples like WordPress.
PHP 8.1.3 has been released as a security‑focused update that fixes numerous core, FFI, filter, FPM, MBString, MySQLnd, pcntl, sockets, and standard extension bugs, and users of the 8.1 series are encouraged to upgrade promptly.
This tutorial explains how to install, configure, and operate Phinx within a ThinkPHP project to manage database schema migrations, create and run seed data, update tables, roll back changes, and keep development environments synchronized.
The article introduces PHP's FFI extension, explains how to call C libraries such as libbloom, manipulate Linux namespaces, and use raylib for graphics, provides complete code examples, and discusses performance considerations, offering a practical guide for backend developers.
The article reports Alexa’s shutdown and TIOBE’s shift to Similarweb, highlights the February TIOBE Top‑20 rankings with Python, C and Java gains, and dives into PHP 8.1’s new features—including enums, read‑only properties, async support, serverless frameworks, and a thriving ecosystem.
The TIOBE Index released its February 2022 ranking, showing the top‑20 programming languages with Python, C and Java each gaining over 1% and highlighting shifts such as PHP re‑entering the top ten, Go climbing to 11th, and detailed listings for positions 21‑100.
Laravel 9, the first LTS release after a 12‑month cycle, brings PHP 8 support, Symfony Mailer integration, Flysystem 3.x, enhanced Eloquent accessors, new route group features, and a host of other backend improvements for modern web development.
The article argues that despite widespread criticism, PHP remains highly popular and indispensable for web development, citing its long‑standing ecosystem, ease of use, massive market share, and the practical advantages it offers over languages like Python in real‑world projects.
This article explains how to integrate Redis caching into PHP applications by leveraging the __call magic method to create cache, clear, and flush operations for model methods, enabling shared model layers, resource‑efficient caching, flexible data source selection, and clean, reusable code.
The article outlines PHP 8.1’s major enhancements—including enums, readonly properties, advanced callable syntax, fibers, intersection types, never return type, final class constants, octal literals, and performance improvements—providing code comparisons that illustrate the new syntax and behavior.
This article introduces the ten most important new features of PHP 8.1—including enums, fibers, the never return type, readonly properties, final class constants, array_is_list(), fsync/fdatasync, string‑key array unpacking, the $_FILES full_path key, and the IntlDatePatternGenerator class—each explained with clear code examples.
The article announces the official release of PHP 8.1 and presents a detailed performance benchmark conducted on an Ubuntu Linux AMD EPYC 72F3 server, comparing multiple PHP versions and highlighting the roughly 4% speed improvement of PHP 8.1 over its predecessor.
The Laravel 8.74.0 release introduces new commands, helper methods, Eloquent aggregation, string reversal, database notification type customization, full‑text indexing, and several bug fixes and performance improvements, while also upgrading Symfony to 5.4 and refining queue connection handling.
This article reviews the ten most widely used PHP frameworks—Laravel, ThinkPHP, Yii, CodeIgniter, Symfony, CakePHP, Zend, Phalcon, FuelPHP, and Slim—highlighting their origins, key features, typical use cases, and the latest versions to help developers choose the right tool for their web projects.
An extensive Phoronix benchmark on Ubuntu‑based AMD EPYC servers compares PHP 8.1 with earlier releases, revealing roughly 4 % speed gains over PHP 8.0, lower peak memory usage, and consistent performance improvements across micro‑benchmarks, XML parsing, and JSON generation.
Symfony v6.0.0, an MVC‑based PHP framework, has been released, offering enterprise‑grade robustness, extensive configurability, and bundled tools, while introducing numerous bug fixes and new features such as a Vonage notifier bridge, enhanced DBAL support, and restored JSON type handling.
The article explains how PHP’s alarmingly low bus factor of two sparked the creation of the PHP Foundation, detailing the key contributors, the backing companies, funding goals, and how the foundation aims to raise the bus factor and sustain core development.
This roundup highlights the launch of the PHP Foundation to boost the language’s bus factor, the Rust moderation team’s resignation protest, Amazon Linux 2022 preview, the CNCF‑sandboxed OpenELB project, and a multi‑part eBPF series for developers.
This article explains how to build a Redis‑based message queue for high‑concurrency business scenarios using RPUSH to enqueue tasks and BLPOP to block‑wait for consumption, illustrated with a PHP cancel‑order example and detailed configuration and code snippets.
