Project In Php And Mysql Source Code Github Link - Onlinevoting System

Relationships are maintained using foreign keys, and indexes optimize query performance during vote tallying.

// Increment candidate vote count $increment = $pdo->prepare("UPDATE candidates SET vote_count = vote_count + 1 WHERE id = ?"); $increment->execute([$candidate_id]); Relationships are maintained using foreign keys, and indexes

// vote.php if ($row['has_voted'] == 1) die("You have already voted in this election."); Relationships are maintained using foreign keys