This article explains how to implement the real-time update of product quantities in the shopping cart of a grocery ordering system, helping developers enhance user experience and system efficiency using PHP.

This article will teach you how to create a PHP7/8 extension using C++ from scratch. It covers environment setup, code implementation, compilation, installation, and is perfect for PHP developers new to extension development.

This article explores the definition, implementation, and importance of PHP method bodies in object-oriented programming, with practical code examples illustrating how to effectively use method bodies.

In PHP, the popen function is a very useful tool that allows you to open a process's input and output streams, enabling data interaction with that process. This feature is especially helpful when you need to execute external commands and capture their output, such as invoking external programs, running scripts, or interacting with other systems.

Routing strategies in PHP determine how URLs are matched to processing logic. This article delves into common routing strategies in PHP, such as raw routing and regular expression routing, helping developers choose the right approach based on application needs.

Learn how to use PHP's file_exists function to check if a file exists and avoid errors when the file is missing. This article provides example code and detailed explanations to help developers better understand the function.

This article provides a detailed guide on using the PHP ZipArchive class for folder compression and extraction, along with practical code examples to help developers quickly master this common task.

In development, we often encounter situations where we need to allow certain items to pass through while excluding those not in the whitelist. We can use the array_diff() function to elegantly exclude specific items from the whitelist, improving code simplicity and readability.

In PHP, cross-file method (function) calls are a common requirement. This article discusses how to call methods across different PHP files and provides detailed code examples. By understanding how to use include, require, and other functions, you can better organize and reuse PHP code.

Learn how to implement personalized recommendation features with ChatGPT and PHP to enhance user experience and meet personalized needs. This article includes full code examples and detailed steps.

Discover the latest features of PHP 8.3, including improvements in the type system, enhanced JIT compiler, and security optimizations that boost performance and resolve shortcomings in previous PHP versions, helping developers improve application efficiency and security.

array_flip() is a very useful function in PHP that swaps the keys and values of an array. Developers often use it to achieve key-value inversion. However, to ensure the function behaves as expected in various scenarios, it is important to write effective unit tests for it.

In PHP, dictionaries (associative arrays) are a commonly used data structure for storing key-value mappings. Typically, we quickly look up values by their keys. However, sometimes we also need to find keys based on values, which requires reverse mapping functionality. There are many ways to implement reverse mapping, and PHP’s built-in array_flip() function offers a simple and efficient solution.

In PHP development, we often need to search for a keyword within a string and determine its relative position in the text. For example, we may want to know whether a keyword appears in the first half or the second half of the text. This is a common requirement in content analysis, SEO, and even advertising.

Image processing is a common requirement in web development, such as generating thumbnails, adding watermarks, and adjusting hues automatically. In certain scenarios, such as creating personalized avatars or artistic effects, we need to dynamically generate color palettes based on different inputs and apply them to images. This article will teach you how to write a PHP script that supports image processing.

When using the MySQLi extension, mysqli::stmt_init is the standard method for creating a statement object, while the prepare function is used to prepare SQL queries. Many developers may encounter situations where the prepare function is called repeatedly in loops or for multiple queries. However, does frequently calling the prepare function affect performance? This article will analyze this issue through practical tests and provide optimization suggestions.

First, we need to split the string to be displayed into individual characters so that each character can be processed separately. The str_split function is a powerful tool to achieve this.

When making HTTP requests with PHP, curl is one of the most commonly used libraries. It allows us to perform various tasks, such as sending GET or POST requests. To optimize performance, sometimes we want to reuse an established connection to avoid the overhead of establishing a new connection every time. This brings us to the concept of HTTP persistent connections.