How can the issue of slow email sending be addressed when sending a large number of emails in PHP?

Issue: When sending a large number of emails in PHP, the process can become slow due to the time it takes to send each individual email. This can lead to delays in delivering all the emails to recipients. To address this issue, one solution is to use a queuing system to handle the sending of emails asynchronously, allowing the script to continue executing without waiting for each email to be sent. 

// Using a queuing system to send emails asynchronously
$emails = array('email1@example.com', 'email2@example.com', 'email3@example.com');

foreach ($emails as $email) {
    // Add email to queue
    $message = "This is a test email";
    $subject = "Test Email";
    $headers = "From: sender@example.com";
    
    // Add email to queue
    $queue->addEmailToQueue($email, $subject, $message, $headers);
}

// Continue executing script without waiting for emails to be sent

Keywords

PHP email sending performance optimization SMTP mail queue

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