php_sapi_nameReturns the type of interface between web server and PHP
&reftitle.description;
stringphp_sapi_name
Returns a lowercase string that describes the type of interface
(the Server API, SAPI) that PHP is using. For example, in CLI PHP this
string will be "cli" whereas with Apache it may have several different
values depending on the exact SAPI used. Possible values are listed
below.
&reftitle.returnvalues;
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, cli-server,
continuity, embed, fpm-fcgi,
isapi, litespeed,
milter, nsapi,
phttpd, pi3web, roxen,
thttpd, tux, and webjames.
&reftitle.examples;
<function>php_sapi_name</function> example
This example checks for the substring cgi
because it may also be cgi-fcgi.
]]>
&reftitle.notes;
An alternative approach
The PHP constant PHP_SAPI has the same value
as php_sapi_name.
A potential gotcha
The defined SAPI may not be obvious, because for
example instead of apache it may be defined as
apache2handler or apache2filter.
&reftitle.seealso;
PHP_SAPI