What are the limitations of using security through obscurity in PHP web applications, and what alternative methods should be considered for enhancing security measures?

Using security through obscurity as the sole method of protecting PHP web applications is not sufficient, as it relies on keeping the code or system hidden to deter attackers. Instead, implementing strong authentication mechanisms, input validation, secure coding practices, and using encryption for sensitive data are more effective ways to enhance security measures. 

// Example of implementing strong authentication in PHP web applications
session_start();

if (!isset($_SESSION['authenticated']) || $_SESSION['authenticated'] !== true) {
    header('Location: login.php');
    exit();
}

Keywords

security through obscurity limitations PHP web applications alternative methods enhancing security measures

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