How can PHP handle different email formats (HTML vs. plaintext) when fetching emails from a server?

When fetching emails from a server in PHP, you can use a library like PHPMailer to handle different email formats (HTML vs. plaintext). PHPMailer provides methods to set the email format and content type based on the email being fetched.

// Include PHPMailer library
require 'path/to/PHPMailer/PHPMailerAutoload.php';

// Create a new PHPMailer instance
$mail = new PHPMailer;

// Set the email format to HTML or plaintext
$mail->isHTML(true); // For HTML format
// $mail->isHTML(false); // For plaintext format

// Fetch emails from the server
// Code to fetch emails goes here