How can server-side validation be implemented to prevent unauthorized access when executing a script on a remote server?

Server-side validation can be implemented by checking the user's credentials before allowing the script to execute on the remote server. This can be done by verifying the user's session or using a token-based authentication system. By validating the user's identity before executing the script, unauthorized access can be prevented. 

// Check user's credentials before executing the script
session_start();

if (!isset($_SESSION['user_id'])) {
    // Redirect or show an error message to unauthorized users
    header("Location: unauthorized_access.php");
    exit();
}

// Proceed with executing the script
// Your script code here

Keywords

server-side validation unauthorized access remote server PHP script security

Related Questions