PHP send mail to multiple email addresses

Question

What code I should do change in this PHP script to send one email to more than 20 email addresses?

Answer 1

You can just write multiple email address to whom you want to send and pass it as the first argument. Example:-

mail("FirstEmailId@ABC.com, SecondEmilId@XYZ.com","Subject","Message","From: EmailId@PQR.com");

Answer 2

Fore readability sake in the code use an array and implode it to a comma separated string:-

$recipients = array(
  "youremailaddress@yourdomain.com",
  // more emails
);
$email_to = implode(',', $recipients); // your email address
$email_subject = "Contact Form Message"; // email subject line
$thankyou = "thankyou.htm"; // thank you page