What is the correct syntax for sending an email to multiple recipients in PHP?

When sending an email to multiple recipients in PHP, you can use the `mail()` function along with the `implode()` function to concatenate multiple email addresses separated by a comma. This allows you to send the same email to multiple recipients without having to send individual emails for each recipient. 

$to = 'recipient1@example.com, recipient2@example.com, recipient3@example.com';
$subject = 'Multiple Recipients Test';
$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 syntax mail() function

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