SQL Injection Attack Principles and Preventive Techniques for PHP Site

Abstract

With1 the rapid development of computer network technology, people's life and work have become more and more dependent on the Internet. Consequent network security issues have also received much attention. At present, SQL injection attacks have become the main method of hacking. SQL injection vulnerabilities seriously threaten the security of WEB application systems. This article takes the PHP language as an example, introduces the reasons for the SQL injection in detail, conducts in-depth research on the common SQL injection attack methods. Based on the practical penetration testing practice, puts forward the SQL injection detection technology and how to avoid SQL injection vulnerability when writing WEB program code. This article provides detailed technical support for testing SQL injection and provides a powerful guarantee for WEB information system in SQL injection defense.