How can one ensure that the extracted data is accurately saved into a database without any errors?

To ensure that extracted data is accurately saved into a database without errors, it is important to properly sanitize and validate the data before inserting it into the database. This can help prevent SQL injection attacks and ensure that the data being saved is in the correct format for the database columns. Additionally, using prepared statements can help protect against SQL injection and ensure the data is correctly inserted into the database.

// Assuming $conn is the database connection object and $data is the extracted data

// Sanitize and validate the data
$sanitized_data = filter_var_array($data, FILTER_SANITIZE_STRING);

// Prepare the SQL statement with placeholders
$stmt = $conn->prepare("INSERT INTO table_name (column1, column2) VALUES (?, ?)");

// Bind the parameters and execute the statement
$stmt->bind_param("ss", $sanitized_data['column1'], $sanitized_data['column2']);
$stmt->execute();