How can PHP be used to send emails to multiple recipients simultaneously?

To send emails to multiple recipients simultaneously using PHP, you can utilize the `mail()` function and specify all the recipients in the `$to` parameter as a comma-separated list. This allows you to send a single email to multiple recipients without having to loop through each recipient individually. 

$to = 'recipient1@example.com, recipient2@example.com, recipient3@example.com';
$subject = 'Multiple Recipients Email';
$message = 'This is a test email sent to multiple recipients.';
$headers = 'From: sender@example.com' . "\r\n" .
    'Reply-To: sender@example.com' . "\r\n" .
    'X-Mailer: PHP/' . phpversion();

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

Keywords

PHP email multiple recipients send simultaneously

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