This article provides a comprehensive guide on how to build a real-time chat feature using PHP and Swoole, combined with a virtual currency system for user top-up and account management—ideal for web apps with interaction and monetization features.

parse_url is a very common function used to parse URLs and break them into parts, such as scheme, host, path, query, etc. However, when the URL you pass in does not have a scheme (such as http:// or https://), parse_url may not parse as expected, resulting in incomplete or even errors in the parse results. This article will analyze the causes of this problem in detail and teach you how to avoid being trapped.

When building slide carousel components, we often need to paginate a set of images or content. For example, there is a set of image data. We hope to display 3 pictures in each carousel, then display the next 3 pictures, and so on. This kind of data slicing operation can be easily implemented in PHP through the array_slice function.

This article provides a comprehensive breakdown of PHP7's internal development mechanism, covering every step from lexical analysis and syntax tree construction to intermediate code generation and the virtual machine execution model. It's designed to help developers fully understand how PHP operates at a low level.

Learn how to use the gmp_prob_prime() function in PHP to check if a number is a prime. This guide explains the underlying Solovay-Strassen algorithm, provides code examples, and outlines practical usage of GMP in cryptographic contexts.

When using MySQL databases in PHP, in addition to catching errors, you sometimes need to pay attention to the warning messages issued by the database. These warnings may indicate potential problems such as data truncation, field length exceeding limits, etc. The mysqli::get_warnings function can help us get these warning information for further processing.

property_exists() is a common method when judging whether an object has a certain property in PHP. However, many developers often fall into some traps when using this function, causing the program to behave less than expected and even cause undetectable bugs. This article will introduce the use traps of property_exists() and its solutions in detail.

在 PHP 中，如果你需要同时发起多个 HTTP 请求，并希望这些请求能够高效地并行执行，curl_multi_exec 和 curl_multi_info_read 是非常实用的函数。本文将详细介绍如何利用这两个函数实现高æ•

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xml_parser_get_option 是 PHP XML 解析器中的一个函数，用于获取解析器的配置选项。其常见语法如下：

This guide explains how to use PHP to continuously listen for Redis pub/sub messages and handle them in real time. It covers installing the Redis extension, configuring your PHP environment, writing subscription logic, and implementing callback functions. Ideal for developers building real-time systems with PHP and Redis.

This article explains how to detect and repair corrupted image files using PHP. By leveraging both the GD library and Exiftool, developers can quickly identify and fix image issues, ensuring reliable media handling in web applications.

This article explains how to retrieve image dimensions and file size using PHP, with practical examples covering both local and remote images. Learn how to use the getimagesize() and filesize() functions to access width, height, MIME type, and formatted file size for better resource handling and user experience.

Learn how the error_get_last() function in PHP works, how to use it, what it returns, and where it’s most useful—helping developers debug and resolve issues more effectively.

In data modeling, image processing, or machine learning, normal distribution (also known as Gaussian distribution) is a very common probability distribution model. Although PHP is not the preferred language for mathematical modeling, it can still be used to build basic mathematical models, especially in the web environment. This article will introduce how to use PHP's built-in cosh() function (hyperbolic cosine function) to build a simplified normal distribution approximation model.

This article provides an in-depth look at how to build and implement chatbots in PHP-based real-time messaging systems. It covers core functionalities like auto-reply, semantic understanding, machine learning, and voice recognition, along with code examples. The guide helps developers create intelligent and efficient AI-driven customer support solutions.

This article provides a practical guide to implementing sensitive word filtering and content moderation in real-time chat systems built with PHP. It covers techniques like regex matching and API-based content audits to ensure secure and compliant chat environments. Developers can apply these methods directly to improve their systems.

When using the mysqli extension for PHP for database operations, we may get the actual length of each field in the current row through the mysqli_result::$lengths property. This property is especially useful when dealing with binary or variable length fields (such as BLOB, TEXT). But how do you detect if you are worried about whether the field length exceeds the expected or defined limit? This article will take you step by step to understand how to achieve this goal.

What is a finite number? In computer science, "finite number" usually refers to a real number that is neither positive infinite (INF), nor negative infinite (-INF), nor NAN (Not A Number). For example, 1.5, 0, and -9999 are all finite numbers, and by dividing by zero or performing a super-large calculation, it may result in infinite numbers.

In PHP multi-byte string processing function, mb_convert_kana is a very practical function, mainly used for various conversions of Japanese characters, such as the conversion of full and half-width, the conversion of Kana's Hiragana business cardikatana, etc. Its usage form is roughly as follows: