What are the advantages of using the file_get_contents function over fgets for reading HTML files in PHP, especially in the context of generating emails?

When reading HTML files in PHP, using the file_get_contents function is advantageous over fgets because it allows for easier and more efficient reading of the entire file at once, rather than line by line. This is particularly useful when generating emails as it simplifies the process of extracting the entire HTML content to include in the email body.

// Using file_get_contents to read HTML file for email generation
$html_content = file_get_contents('path/to/file.html');

// Use $html_content in your email generation process