How can data encapsulation in PHP be used to prevent XSS attacks in form submissions?

Data encapsulation in PHP can prevent XSS attacks in form submissions by properly sanitizing and escaping user input before displaying it on the webpage. This can be done using functions like htmlspecialchars() or htmlentities() to encode special characters in the input data. By encapsulating the data within these functions, it ensures that any malicious scripts entered by the user will be rendered harmless when displayed on the webpage. 

// Example of using data encapsulation to prevent XSS attacks in form submissions

// Get user input from form submission
$userInput = $_POST['user_input'];

// Sanitize and escape user input before displaying it
$sanitizedInput = htmlspecialchars($userInput);

// Display the sanitized input on the webpage
echo $sanitizedInput;

Keywords

PHP data encapsulation XSS attacks form submissions security

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