php_sapi_name

    (PHP 4 >= 4.0.1, PHP 5, PHP 7, PHP 8)

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

    Description

    function php_sapi_name(): string|false

    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.

    Parameters

    This function has no parameters.

    Return Values

    Returns the interface type, as a lowercase string, or false on failure.

    Although not exhaustive, the possible return values include apache, apache2handler, cgi (until PHP 5.3), cgi-fcgi, cli, cli-server, embed, fpm-fcgi, litespeed, phpdbg.