PHP function php_sapi_name()
Availability in versions: PHP 4.0.1
Returns the type of interface between web server and PHP
Parameters
The function has no input parameters.
Return values
string
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.