Build a web-based task manager where users can:
Perfect for beginners to learn:
✅ PHP form handling
✅ MySQL database operations
✅ Basic CRUD functionality
✅ Session management (for user login in extended version)
task_manager_db)CREATE TABLE tasks (
id INT AUTO_INCREMENT PRIMARY KEY,
title VARCHAR(255) NOT NULL,
description TEXT,
due_date DATE,
category ENUM('Work', 'Personal', 'Study') NOT NULL,
is_completed BOOLEAN DEFAULT FALSE,
created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
);
-- Sample data
INSERT INTO tasks (title, description, due_date, category) VALUES
('Complete PHP project', 'Build a task manager app', '2023-12-15', 'Work'),
('Buy groceries', 'Milk, eggs, bread', '2023-12-10', 'Personal');
config.php (Database Connection)<?php
$host = "localhost";
$user = "root";
$pass = "";
$db = "task_manager_db";
$conn = new mysqli($host, $user, $pass, $db);
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
?>
index.php (Main Task Dashboard)<?php include 'config.php'; ?>
<!DOCTYPE html>
<html>
<head>
<title>My Task Manager</title>
<style>
body { font-family: Arial; max-width: 800px; margin: 0 auto; padding: 20px; }
.task { background: #f9f9f9; padding: 15px; margin-bottom: 10px; border-radius: 5px; }
.completed { opacity: 0.6; text-decoration: line-through; }
.task-actions a { margin-right: 10px; }
.category-work { border-left: 4px solid #3498db; }
.category-personal { border-left: 4px solid #2ecc71; }
.category-study { border-left: 4px solid #9b59b6; }
</style>
</head>
<body>
<h1>My Tasks</h1>
<!-- Add New Task Form -->
<form method="POST" action="add_task.php">
<h2>Add New Task</h2>
<input type="text" name="title" placeholder="Task title" required>
<textarea name="description" placeholder="Description"></textarea>
<input type="date" name="due_date">
<select name="category" required>
<option value="Work">Work</option>
<option value="Personal">Personal</option>
<option value="Study">Study</option>
</select>
<button type="submit">Add Task</button>
</form>
<!-- Task List -->
<h2>My Task List</h2>
<?php
$sql = "SELECT * FROM tasks ORDER BY is_completed, due_date ASC";
$result = $conn->query($sql);
if ($result->num_rows > 0) {
while ($task = $result->fetch_assoc()) {
$completed = $task['is_completed'] ? 'completed' : '';
echo "<div class='task category-{$task['category']} {$completed}'>
<h3>{$task['title']}</h3>
<p>{$task['description']}</p>
<p>Due: {$task['due_date']} | Category: {$task['category']}</p>
<div class='task-actions'>
<a href='toggle_complete.php?id={$task['id']}'>" .
($task['is_completed'] ? 'Mark Incomplete' : 'Mark Complete') .
"</a>
<a href='edit_task.php?id={$task['id']}'>Edit</a>
<a href='delete_task.php?id={$task['id']}'>Delete</a>
</div>
</div>";
}
} else {
echo "<p>No tasks found. Add your first task above!</p>";
}
?>
</body>
</html>
add_task.php (Process New Task)<?php
include 'config.php';
if ($_SERVER["REQUEST_METHOD"] == "POST") {
$title = $_POST['title'];
$description = $_POST['description'];
$due_date = $_POST['due_date'];
$category = $_POST['category'];
$sql = "INSERT INTO tasks (title, description, due_date, category)
VALUES ('$title', '$description', '$due_date', '$category')";
if ($conn->query($sql)) {
header("Location: index.php");
} else {
echo "Error: " . $conn->error;
}
}
?>
toggle_complete.php (Mark Complete/Incomplete)<?php
include 'config.php';
$id = $_GET['id'];
$task = $conn->query("SELECT is_completed FROM tasks WHERE id=$id")->fetch_assoc();
$new_status = $task['is_completed'] ? 0 : 1;
$conn->query("UPDATE tasks SET is_completed=$new_status WHERE id=$id");
header("Location: index.php");
?>
edit_task.php (Edit Existing Task)<?php
include 'config.php';
// Handle form submission
if ($_SERVER["REQUEST_METHOD"] == "POST") {
$id = $_POST['id'];
$title = $_POST['title'];
$description = $_POST['description'];
$due_date = $_POST['due_date'];
$category = $_POST['category'];
$sql = "UPDATE tasks SET
title='$title',
description='$description',
due_date='$due_date',
category='$category'
WHERE id=$id";
$conn->query($sql);
header("Location: index.php");
}
// Get task to edit
$id = $_GET['id'];
$task = $conn->query("SELECT * FROM tasks WHERE id=$id")->fetch_assoc();
?>
<!DOCTYPE html>
<html>
<head>
<title>Edit Task</title>
<style>
/* Same as index.php styles */
</style>
</head>
<body>
<h1>Edit Task</h1>
<form method="POST" action="edit_task.php">
<input type="hidden" name="id" value="<?php echo $task['id']; ?>">
<input type="text" name="title" value="<?php echo $task['title']; ?>" required>
<textarea name="description"><?php echo $task['description']; ?></textarea>
<input type="date" name="due_date" value="<?php echo $task['due_date']; ?>">
<select name="category" required>
<option value="Work" <?php if ($task['category'] == 'Work') echo 'selected'; ?>>Work</option>
<option value="Personal" <?php if ($task['category'] == 'Personal') echo 'selected'; ?>>Personal</option>
<option value="Study" <?php if ($task['category'] == 'Study') echo 'selected'; ?>>Study</option>
</select>
<button type="submit">Update Task</button>
</form>
</body>
</html>
delete_task.php (Delete Task)<?php
include 'config.php';
$id = $_GET['id'];
$conn->query("DELETE FROM tasks WHERE id=$id");
header("Location: index.php");
?>
htdocs/task_managerhttp://localhost/task_manager/index.php🔹 PHP Forms – Handling user input
🔹 MySQL CRUD – Creating, reading, updating, deleting data
🔹 Basic UI – Clean task display with CSS
🔹 Practical Application – Building something useful
This project gives beginners hands-on experience building a real-world application while learning fundamental PHP/MySQL concepts! 🚀