How to check if php-fpm is installed and running correctly?

Question

As in title, how to check php-fpm status? Is it running? How many request serving? Thanks.

Answer 1

You can get the SAPI with

• php_sapi_name — Returns the type of interface between web server and PHP

Returns the interface type, as a lowercase string. Although not exhaustive, the possible return values include aolserver, apache, apache2filter, apache2handler, caudium, cgi (until PHP 5.3), cgi-fcgi, cli, continuity, embed, isapi, litespeed, milter, nsapi, phttpd, pi3web, roxen, thttpd, tux, and webjames.

For status and how many requests are served you might want to use exec or system.