How can PHP developers prevent session hijacking and other security vulnerabilities?

To prevent session hijacking and other security vulnerabilities in PHP, developers should use secure session handling techniques such as regenerating session IDs after a user logs in or changes privilege levels. Additionally, developers should always validate and sanitize user input to prevent SQL injection attacks and cross-site scripting (XSS) vulnerabilities. 

// Regenerate session ID after successful login
session_regenerate_id();

// Validate and sanitize user input
$username = filter_input(INPUT_POST, 'username', FILTER_SANITIZE_STRING);
$password = filter_input(INPUT_POST, 'password', FILTER_SANITIZE_STRING);

Keywords

Session hijacking security vulnerabilities PHP developers prevention authentication.

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