Simple Mail Send Function In PHP

 <?php

$to  = 'test@gmail.com';

$subject = 'Demo mail subject'

$message = 'Body of the smessage';

mail($to, $subject, $message);

//Or we can send directly like below 

mail('test@gmail.com', 'Demo mail subject', 'Body of the smessage');

//You can check in spam or inbox in mail

?>