Definition: The word "class" refers to a class system in ancient Mesopotamian society, which was a hierarchical grouping of people based on their social status or occupation. The class system allowed for different classes within a society to hold power or influence over others. In terms of a PHP function, "Mailer.php" is a file that extends the core PHP Mailer class, providing methods and attributes specific to the mail sending process. The file is often used as part of an automated email sending service, allowing users to configure settings for sending emails to specific classes within society. The term "class.phpmailer.php" likely refers to a class or module in PHPMailer's documentation that offers additional features for customizing the SMTP server configuration and other options related to email sending.
closed bracket.
what should be said.