Are there any best practices for handling user information, such as computer names, in PHP applications?

When handling user information like computer names in PHP applications, it's important to sanitize and validate user input to prevent security vulnerabilities such as SQL injection or cross-site scripting attacks. One way to achieve this is by using PHP's filter_var() function with the FILTER_SANITIZE_STRING filter to clean the input data.

// Sanitize and validate user input for computer names
$computerName = filter_var($_POST['computer_name'], FILTER_SANITIZE_STRING);