What are common challenges faced when implementing a voting script in a PHP CMS?

One common challenge when implementing a voting script in a PHP CMS is ensuring that each user can only vote once. To solve this, you can store the user's vote in a session or cookie to track their vote status. 

// Check if user has already voted
if(isset($_SESSION['voted'])) {
    echo "You have already voted.";
} else {
    // Process the vote
    $_SESSION['voted'] = true;
    echo "Thank you for voting!";
}

Keywords

voting script PHP CMS authentication security scalability

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