Course Introduction：PHP implements filtering of various HTML tags. PHP implements filtering of various HTML tags. In the process of working on projects, we often need to filter some HTML tags to improve data security. In fact, it is to delete those that are harmful to the application.
2016-07-13 comment 0 1304
Course Introduction：This article demonstrates building a PHP application that interacts with the YouTube Data API v3, adding search and category filtering capabilities to a previous "most popular videos" application. Key Features and Improvements: Video Cate
2025-02-17 comment 0 701
Course Introduction：PHP provides a variety of methods to filter array elements. The preferred array_filter implements flexible filtering. It defines filtering conditions through a callback function, such as retaining elements greater than 10; if no callback is provided, the item with a value of false will be automatically removed. Secondly, you can combine array_map and conditional judgment to perform preliminary screening while converting data, but pay attention to the problem of null value processing. Finally, manual control using foreach loops is suitable for beginners or complex conditional processing. Although it is not as concise as functional writing, it is more intuitive and easy to debug.
2025-07-05 comment 0 456
Course Introduction：To clean up null or null values ??in PHP arrays, you can use the array_filter function, which will remove all false values ??such as null, empty strings, false, 0 and empty arrays by default. If you want to remove only null and empty strings, you need to customize the filtering conditions to retain other false values; use array_values ??to re-index the array key names; recursive filtering is required when dealing with multi-dimensional arrays; pay attention to spaces, data types and performance issues. 1. Use array_filter to filter false values ??by default; 2. Custom callbacks retain specific values; 3. Array_values ??reset key names; 4. Recursive functions handle multi-dimensional arrays; 5. Pay attention to the impact of spaces, types and performance.
2025-07-04 comment 0 915
Course Introduction：The security risks of PHP sessions mainly include session hijacking, session fixation, session prediction and session poisoning. 1. Session hijacking can be prevented by using HTTPS and protecting cookies. 2. Session fixation can be avoided by regenerating the session ID before the user logs in. 3. Session prediction needs to ensure the randomness and unpredictability of session IDs. 4. Session poisoning can be prevented by verifying and filtering session data.
2025-04-28 comment 0 891
Course Elementary 13743
Course Introduction：Scala Tutorial Scala is a multi-paradigm programming language, designed to integrate various features of object-oriented programming and functional programming.
Course Elementary 82254
Course Introduction："CSS Online Manual" is the official CSS online reference manual. This CSS online development manual contains various CSS properties, definitions, usage methods, example operations, etc. It is an indispensable online query manual for WEB programming learners and developers! CSS: Cascading Style Sheets (English full name: Cascading Style Sheets) is an application used to express HTML (Standard Universal Markup Language).
Course Elementary 13130
Course Introduction：SVG is a markup language for vector graphics in HTML5. It maintains powerful drawing capabilities and at the same time has a very high-end interface to operate graphics by directly operating Dom nodes. This "SVG Tutorial" is intended to allow students to master the SVG language and some of its corresponding APIs, combined with the knowledge of 2D drawing, so that students can render and control complex graphics on the page.
Course Elementary 24578
Course Introduction：In the "AngularJS Chinese Reference Manual", AngularJS extends HTML with new attributes and expressions. AngularJS can build a single page application (SPAs: Single Page Applications). AngularJS is very easy to learn.
Course Elementary 27435
Course Introduction：Go is a new language, a concurrent, garbage-collected, fast-compiled language. It can compile a large Go program in a few seconds on a single computer. Go provides a model for software construction that makes dependency analysis easier and avoids most C-style include files and library headers. Go is a statically typed language, and its type system has no hierarchy. Therefore users do not need to spend time defining relationships between types, which feels more lightweight than typical object-oriented languages. Go is a completely garbage-collected language and provides basic support for concurrent execution and communication. By its design, Go is intended to provide a method for constructing system software on multi-core machines.
Open source PHP novice entry-level framework WillPHP (similar to ThinkPHP)
2022-07-23 16:30:16 0 0 938
Create REST API GET method with multiple filters in PHP
2024-01-29 13:03:56 0 1 514
Laravel Modal does not return data
2024-03-29 10:31:31 0 1 586
Can I use the automatic generation module of thinkphp5 in Windows 7 system? How to configure and use
2017-10-10 17:04:14 0 2 1379
