(PHP 4 >= 4.0.1, PHP 5)
php_sapi_name — Returns the type of interface between web server and PHP
Returns a lowercase string which describes the type of interface between web server and PHP (Server API, SAPI). In CGI PHP, this string is "cgi", in mod_php for Apache, this string is "apache" and so on.
Returns the interface type, as a lowercase string.
Example#1 php_sapi_name() example
<?php
$sapi_type = php_sapi_name();
if (substr($sapi_type, 0, 3) == 'cgi') {
echo "You are using CGI PHP\n";
} else {
echo "You are not using CGI PHP\n";
}
?>