Onlinevoting System Project In Php And Mysql Source Code Github Link – Instant

It was the final semester of college, and three friends—Aarav, Meera, and Rohan—were staring at a blank project proposal document. Their professor, Dr. Nair, had given them a challenge: "Build a secure, functional online voting system that could be used for student council elections. No cheating, no double voting, and it must be transparent."

The problem? None of them had ever built a system that handled user authentication, session management, vote counting, and result declaration—all in real time.

But they were determined.

They decided to build it using PHP for server-side logic and MySQL for the database, hosted locally on XAMPP. Over the next three weeks, they went through the classic developer journey: planning, failing, debugging, and finally succeeding.

They made sure a voter could only vote once per election using a UNIQUE constraint in the votes table. It was the final semester of college, and

// vote.php
if ($row['has_voted'] == 1) 
    die("You have already voted in this election.");
$stmt = $conn->prepare("INSERT INTO votes (voter_id, candidate_id, election_id) VALUES (?, ?, ?)");
$stmt->bind_param("sii", $voter_id, $candidate_id, $election_id);
if ($stmt->execute()) 
// Update voters table
$conn->query("UPDATE voters SET has_voted = 1 WHERE voter_id = '$voter_id'");
echo "Vote cast successfully!";

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