What are the potential security risks of generating and executing PHP scripts dynamically?

Generating and executing PHP scripts dynamically can pose security risks such as code injection, remote code execution, and access to sensitive information. To mitigate these risks, it is important to sanitize user input, validate input data, and limit the execution of potentially harmful functions.

// Example of sanitizing user input before executing dynamic PHP script
$user_input = $_POST['user_input'];

// Sanitize user input using htmlspecialchars to prevent code injection
$sanitized_input = htmlspecialchars($user_input);

// Execute the dynamic PHP script
eval($sanitized_input);