“PHP as it's known today is actually the successor to a product named PHP/FI. Created in 1994 by Rasmus Lerdorf, the very first incarnation of PHP was a simple set of Common Gateway Interface (CGI) binaries written in the C programming language. Originally used for tracking visits to his online resum…”— PHP, php.net
“Using a queue when sending emails is good because the user does not have to wait for the email to be sent to load the page. The application puts the job in the queue for later resolution thus decreasing page load time.”— Laravelista, laravelista.com