What are the best practices for filtering out HTML tags from form inputs in PHP to prevent potential vulnerabilities?

To prevent potential vulnerabilities caused by HTML tags in form inputs, it is best practice to sanitize user input by filtering out any HTML tags before processing or displaying the data. This can be achieved using PHP's htmlspecialchars() function, which converts special characters to HTML entities, preventing them from being interpreted as HTML code.

// Filter out HTML tags from form input
$filteredInput = htmlspecialchars($_POST['input_field']);