How can the PHP script be modified to properly read and parse CSV data from a website?

The PHP script can be modified to properly read and parse CSV data from a website by using the `file_get_contents()` function to retrieve the CSV file from the website and then using the `str_getcsv()` function to parse the data into an array. The `str_getcsv()` function allows for proper handling of CSV data including handling of commas within quotes.

$url = 'https://example.com/data.csv';
$csvData = file_get_contents($url);
$dataArray = array_map('str_getcsv', explode("\n", $csvData));

// Loop through the data array
foreach ($dataArray as $row) {
    // Process each row of data as needed
    echo implode(', ', $row) . '<br>';
}