What are potential security risks associated with dynamically generating and executing PHP code?

Dynamically generating and executing PHP code can pose security risks such as code injection, allowing malicious users to execute arbitrary code on the server. To mitigate this risk, it is important to validate and sanitize any user input before executing it as PHP code. 

// Example of sanitizing user input before executing it as PHP code
$user_input = $_POST['user_input'];

// Validate and sanitize user input
$filtered_input = filter_var($user_input, FILTER_SANITIZE_STRING);

// Execute the sanitized input as PHP code
eval($filtered_input);

Keywords

SQL injection Cross-site scripting (XSS) Remote code execution Code injection File inclusion vulnerability

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