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Users log in using their credentials. Session tracking prevents unauthenticated access to the voting booth.
: Visit a GitHub repository, for example, the one by Yashodha-Bhosle , and either clone it using Git or download it as a ZIP file.
🔗 👉 https://github.com/yourusername/online-voting-system-php-mysql 👈 This public link is valid for 7 days
In the digital age, the demand for secure, efficient, and transparent online voting mechanisms has skyrocketed. From student council elections in universities to corporate board voting and large-scale association polls, an eliminates paper waste, reduces manual counting errors, and allows remote participation.
// voter_login.php (Snippet) session_start(); include 'db_connect.php'; if (isset($_POST['login'])) $voter_id = $_POST['voter_id']; $password = $_POST['password']; $sql = "SELECT * FROM voters WHERE voter_id = ?"; $stmt = $conn->prepare($sql); $stmt->bind_param("s", $voter_id); $stmt->execute(); $result = $stmt->get_result(); if ($result->num_rows < 1) $_SESSION['error'] = 'Cannot find voter with that ID'; else $row = $result->fetch_assoc(); if (password_verify($password, $row['password'])) $_SESSION['voter'] = $row['id']; header('location: home.php'); exit(); else $_SESSION['error'] = 'Incorrect password'; Use code with caution. Ballot Submission and Vote Counting
: Execute the SQL schema script inside phpMyAdmin to build the tables. Can’t copy the link right now
The voter selects their candidates and submits the ballot. The system updates the voter's status to "voted" and increments the candidate's tally in a single database transaction. Database Schema Design
CREATE TABLE `candidates` ( `id` INT AUTO_INCREMENT PRIMARY KEY, `position_id` INT NOT NULL, `firstname` VARCHAR(50) NOT NULL, `lastname` VARCHAR(50) NOT NULL, `photo` VARCHAR(150) NOT NULL, `platform` TEXT, FOREIGN KEY (`position_id`) REFERENCES `positions`(`id`) ON DELETE CASCADE ); Use code with caution. Table: votes
This file establishes a secure connection between the PHP scripts and the MySQL database using PHP Data Objects (PDO), which helps mitigate SQL injection risks. verifies their password hash
This script authenticates the voter, verifies their password hash, and initializes their session variables.
A robust relational structure prevents duplicate voting and ensures data integrity.
A robust database structure ensures data integrity and prevents duplicate voting. Below is the relational database schema optimized for a standard PHP-MySQL voting application. Table: admin Stores the login credentials for system administrators.