What are the best practices for handling form data submission in PHP to ensure successful database insertion?

When handling form data submission in PHP to ensure successful database insertion, it is important to sanitize and validate the input data to prevent SQL injection and other security vulnerabilities. Additionally, using prepared statements with parameterized queries can help prevent SQL injection attacks. Finally, always handle potential errors during the database insertion process to provide feedback to the user and ensure data integrity. 

// Sanitize and validate form data
$name = filter_var($_POST['name'], FILTER_SANITIZE_STRING);
$email = filter_var($_POST['email'], FILTER_VALIDATE_EMAIL);

// Prepare the SQL statement with a parameterized query
$stmt = $pdo->prepare("INSERT INTO users (name, email) VALUES (:name, :email)");
$stmt->bindParam(':name', $name);
$stmt->bindParam(':email', $email);

// Execute the query and handle potential errors
if ($stmt->execute()) {
    echo "Data inserted successfully";
} else {
    echo "Error inserting data: " . $stmt->errorInfo();
}

Keywords

SQL injection prepared statements data validation PDO error handling

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