What best practices should be followed when creating a user-friendly interface for inputting data into a database using PHP?

When creating a user-friendly interface for inputting data into a database using PHP, it is important to validate user input to prevent SQL injection attacks and ensure data integrity. Use prepared statements to safely insert data into the database and provide clear error messages for any validation errors. Additionally, consider implementing client-side validation using JavaScript to improve the user experience. 

<?php
// Establish a database connection
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "database";

$conn = new mysqli($servername, $username, $password, $dbname);

// Check connection
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}

// Validate user input
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    $name = $_POST['name'];
    $email = $_POST['email'];
    
    // Prepare and bind SQL statement
    $stmt = $conn->prepare("INSERT INTO users (name, email) VALUES (?, ?)");
    $stmt->bind_param("ss", $name, $email);
    
    // Execute the statement
    if ($stmt->execute()) {
        echo "New record created successfully";
    } else {
        echo "Error: " . $conn->error;
    }
    
    $stmt->close();
}

$conn->close();
?>

Keywords

form validation prepared statements PDO input sanitization error handling

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