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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：PHP PDO Statement Parameter Limitations: Table and Column NamesPrepared statements in PHP Data Objects (PDO) provide enhanced security by...

2024-12-29 comment 0  659

Course Introduction：Secure database updates with PHP prepared statements, preventing SQL injections. Proper parameter binding and data type alignment ensure data integrity and security.

2024-10-21 comment 0  427

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 Introduction：In PHP, $_GET, $_POST, and $_REQUEST are used to collect data from HTTP requests, but for different purposes. 1.$_GET is used to retrieve non-sensitive data through URL query strings, suitable for scenarios such as filtering content, paging links, etc.; 2.$_POST is used to process sensitive or large amounts of data submitted through HTML forms, such as login information and file uploads; 3.$_REQUEST is a collection of $_GET, $_POST and $_COOKIE, providing a unified access method, but may cause conflicts. It is recommended to use $_GET or $_POST first to avoid ambiguity and security risks.

2025-06-11 comment 0  588

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.