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-- Admin table CREATE TABLE admins ( id INT AUTO_INCREMENT PRIMARY KEY, username VARCHAR(50) UNIQUE, password VARCHAR(255) -- hashed ); If the above repo doesn't exist, you can
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prepare("SELECT voted_status FROM voters WHERE voter_id = ?"); $stmt->execute([$voter_id]); $voter = $stmt->fetch(); if ($voter['voted_status'] == 1) $_SESSION['error'] = 'You have already cast your vote.'; header('location: ballot.php'); exit(); if (isset($_POST['vote'])) try $pdo->beginTransaction(); // Fetch all active positions to loop through the submitted POST data $stmt = $pdo->query("SELECT id FROM positions"); $positions = $stmt->fetchAll(); foreach ($positions as $pos) $pos_id = $pos['id']; if (isset($_POST['position_' . $pos_id])) $candidate_id = $_POST['position_' . $pos_id]; // Insert the vote $insert = $pdo->prepare("INSERT INTO votes (voter_id, position_id, candidate_id) VALUES (?, ?, ?)"); $insert->execute([$voter_id, $pos_id, $candidate_id]); // Update voter status to prevent duplicate voting $update = $pdo->prepare("UPDATE voters SET voted_status = 1 WHERE voter_id = ?"); $update->execute([$voter_id]); $pdo->commit(); $_SESSION['success'] = 'Ballot submitted successfully!'; catch (Exception $e) $pdo->rollBack(); $_SESSION['error'] = 'Something went wrong. Please try again.'; header('location: ballot.php'); ?> Use code with caution. 5. Setting Up Portability and GitHub Making the Project Portable Download or Laragon Portable zip archive. or everything rolls back. Approve
This backend script processes cast votes. It implements transaction mechanisms to guarantee atomicity: either both the ledger update and ballot count succeed, or everything rolls back.
Approve, reject, or filter registered voters.