In the event of a PHP code injection attack, what steps should be taken to mitigate the impact and restore the system to a secure state?

In the event of a PHP code injection attack, steps should be taken to sanitize user input, validate all data, and use prepared statements when interacting with databases to prevent malicious code from being executed. Additionally, regularly updating PHP versions and security patches can help mitigate the risk of code injection attacks. 

// Sanitize user input before using it in queries
$userInput = $_POST['input'];
$sanitizedInput = filter_var($userInput, FILTER_SANITIZE_STRING);

// Use prepared statements to interact with the database
$stmt = $pdo->prepare('SELECT * FROM users WHERE username = :username');
$stmt->bindParam(':username', $sanitizedInput);
$stmt->execute();

Keywords

PHP code injection security mitigation restore

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