PHP Security Patterns
PHP Security Patterns
Introduction
Security is paramount in PHP applications as they often handle sensitive user data, authentication, and financial transactions. PHP's flexibility and dynamic nature create opportunities for vulnerabilities if security best practices aren't followed.
Common PHP security vulnerabilities include SQL injection, cross-site scripting (XSS), cross-site request forgery (CSRF), insecure password storage, session hijacking, and file inclusion attacks. Each can lead to data breaches, unauthorized access, or complete system compromise.
This skill covers input validation and sanitization, SQL injection prevention, XSS protection, CSRF defense, secure password handling, session security, file upload security, and defense-in-depth strategies.
Input Validation and Sanitization
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