How can a cronjob be used to send a limited number of emails at regular intervals to prevent server overload when sending newsletters in PHP?

To prevent server overload when sending newsletters in PHP, a cronjob can be set up to send a limited number of emails at regular intervals. This can be achieved by creating a PHP script that sends a specified number of emails each time it is executed by the cronjob. By limiting the number of emails sent per execution, the server load can be managed effectively. 

// Limit the number of emails to be sent per execution
$limit = 100;

// Retrieve email addresses from the database or any other source
$emails = ['email1@example.com', 'email2@example.com', 'email3@example.com'];

// Send emails up to the limit
for ($i = 0; $i < $limit && $i < count($emails); $i++) {
    $to = $emails[$i];
    $subject = 'Newsletter Subject';
    $message = 'Newsletter Content';
    // Send email using mail() function or any other mailing library
    mail($to, $subject, $message);
}

Keywords

cronjob email sending server overload newsletters PHP

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