PHP/EXTRA.PHP at main · CodeofAditya/PHP · GitHub

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Db.php
<?php
$conn = mysqli_connect("localhost", "root", "", "classb");
if (!$conn) {
    die("Connection failed: " . mysqli_connect_error());
}
?>
index.php
<?php include 'db.php'; ?>
<!DOCTYPE html>
<html>
<head>
    <title>User List</title>
</head>
<body>
<h2>User List</h2>
<a href="insert.php">Add New User</a>
<br><br>
<table border="1" cellpadding="10">
<tr>
    <th>ID</th>
    <th>Name</th>
    <th>Email</th>
    <th>Age</th>
    <th>Action</th>
</tr>
<?php
$result = mysqli_query($conn, "SELECT * FROM users");
while($row = mysqli_fetch_assoc($result)) {
?>
<tr>
    <td><?php echo $row['id']; ?></td>
    <td><?php echo $row['name']; ?></td>
    <td><?php echo $row['email']; ?></td>
    <td><?php echo $row['age']; ?></td>
    <td>
        <a href="update.php?id=<?php echo $row['id']; ?>">Edit</a> |
        <a href="delete.php?id=<?php echo $row['id']; ?>"
           onclick="return confirm('Are you sure?')">Delete</a>
    </td>
</tr>
<?php } ?>
</table>
</body>
</html>
insert.php
<?php
include 'db.php';
if(isset($_POST['save'])) {
    $name  = $_POST['name'];
    $email = $_POST['email'];
    $age   = $_POST['age'];
    mysqli_query($conn, "INSERT INTO users(name,email,age)
                         VALUES('$name','$email','$age')");
    header("Location: index.php");
}
?>
<!DOCTYPE html>
<html>
<head>
    <title>Add User</title>
</head>
<body>
<h2>Add User</h2>
<form method="POST">
    Name: <input type="text" name="name" required><br><br>
    Email: <input type="email" name="email" required><br><br>
    Age: <input type="number" name="age" required><br><br>
    <button type="submit" name="save">Save</button>
</form>
<br>
<a href="index.php">Back to List</a>
</body>
</html>