This article provides a detailed explanation of how to implement secure form validation in PHP, covering input filtering, regex validation, error handling, and injection prevention techniques to help developers protect web applications effectively.

This article provides a detailed guide and practical tips for DedeCMS mobile design, covering responsive layouts, image optimization, touch event handling, and mobile navigation implementation to help developers build efficient and smooth mobile websites.

This article explains how to implement redirects from list pages to detail pages in PHPCMS, including template setup, controller logic, and content rendering. It's a practical guide for developers.

This article explains how to use PHP code to hide the middle four digits of a phone number to protect user privacy. With a simple and clear function example, developers can easily implement partial phone number masking to enhance data security.

In PHP, preg_replace_callback_array is a powerful function that allows handling multiple regular expression replacements through callback functions. It is widely used in various text processing tasks. Today, we will show how to use the preg_replace_callback_array function to replace special tokens in code comments and convert them into corresponding document content. This is very useful for code documentation and automatic comment generation.

This article provides a detailed explanation of common encoding issues encountered when handling English text in PHP development, covering file read/write and database operations with practical code examples to help developers avoid garbled characters and encoding errors.

FFI is a feature introduced in PHP 7.4 that allows PHP scripts to load and interact with shared libraries written in C. Developers can call C functions, use C structs, and more through FFI, significantly extending PHP’s capabilities.

When working with a MySQL database, the mysqli extension in PHP provides a convenient way to interact with it. If you want to perform an INSERT operation and simultaneously retrieve the auto-increment ID of the inserted record, you can achieve this using the mysqli::stmt_init function. In this guide, we’ll walk you through how to use mysqli::stmt_init to complete this task.

stream_context_get_options() is a very practical function that allows us to retrieve all options in the current stream context. Understanding this function—and how it differs from get_params()—is crucial for mastering PHP stream operations. This article explains in detail what stream_context_get_options() returns and compares it with get_params().

In high-frequency trading (HFT) and large-scale crawler systems, performance and resource efficiency are crucial. Although PHP is not the traditional choice for HFT, it is still widely used in scenarios such as data collection and API calls. This article focuses on the usage of the curl_share_init() function in PHP and how it helps share resources across multiple cURL requests to optimize the performance of high-concurrency HTTP requests.

This article explains the multiple advantages of deploying PHP applications using containerization technology, including environment isolation, resource limitation, portability, scalability, continuous integration, and security, helping developers efficiently leverage containers to improve PHP application deployment quality and efficiency.

This article provides a detailed introduction to the main PHP functions for sending emails, including the mail() function and IMAP-based imap_mail(), along with practical code examples to help developers easily implement email sending features.

When working with databases—especially for PHP developers using MySQL—query failures caused by misspelled field names are a common issue. Although MySQL may return error messages, by leveraging the mysqli::$error property, we can effectively detect and correct these mistakes.

This article provides a detailed explanation of how to implement PHP array intersection and union, analyzing the handling techniques for boundary conditions and special cases, helping developers better understand and use array operations.

In PHP, checking whether a string consists entirely of uppercase letters is a common operation. Fortunately, PHP provides the built-in function ctype_upper(), which makes this task easy. In this article, we’ll show you how to use the ctype_upper() function to determine if a string is made up entirely of uppercase letters.