What are the advantages and disadvantages of using arrays versus text files for storing email addresses in PHP?

Using arrays for storing email addresses in PHP allows for easy manipulation and retrieval of data, as well as the ability to quickly iterate through the list of addresses. However, arrays are stored in memory and may not be the best option for large amounts of data. On the other hand, storing email addresses in text files allows for persistent storage and can handle larger datasets, but may be slower to access and manipulate compared to arrays.

// Storing email addresses in an array
$emailAddresses = ['john@example.com', 'jane@example.com', 'doe@example.com'];

// Storing email addresses in a text file
$file = fopen("email_addresses.txt", "w");
fwrite($file, "john@example.com\n");
fwrite($file, "jane@example.com\n");
fwrite($file, "doe@example.com\n");
fclose($file);