How can emails with different text (read from a database) be sent from an HTML page when the user only needs to provide the email address(es) of the recipient(s) and the subject?

To achieve this functionality, you can use PHP to retrieve the email content from a database based on the subject provided by the user. Then, you can send the email using the PHP `mail()` function after the user enters the recipient email address(es) and subject on the HTML page.

<?php
// Retrieve email content from database based on subject
$subject = $_POST['subject'];
// Perform database query to get email content
$emailContent = "Email content retrieved from database based on subject";

// Get recipient email address(es) from user input
$recipient = $_POST['recipient'];

// Send email
$success = mail($recipient, $subject, $emailContent);

if($success){
    echo "Email sent successfully!";
} else{
    echo "Failed to send email. Please try again.";
}
?>