How does the use of cron jobs in PHP for sending emails compare to using other programs or tools for email delivery in terms of computational resources and speed?

When sending a large number of emails in PHP, using cron jobs to queue and send emails at specific intervals can be more efficient in terms of computational resources and speed compared to sending emails directly within the PHP script. By offloading the email sending process to a cron job, it allows the main PHP script to continue executing without delays caused by sending emails. This approach can help improve the performance of the application and ensure that emails are sent reliably and efficiently. 

// Code snippet to queue and send emails using cron jobs in PHP

// Add this command to your crontab to run every minute
// * * * * * php /path/to/your/script.php

// Define a function to send emails
function sendEmail($to, $subject, $message) {
    // Code to send email
}

// Retrieve emails from the database or other source
$emails = // Retrieve emails to send

// Loop through each email and send it
foreach ($emails as $email) {
    sendEmail($email['to'], $email['subject'], $email['message']);
}

Keywords

cron jobs PHP email delivery computational resources speed

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