Is\Is::apache(); 
// true if current run server is apache

Is\Is::build_in_server(); 
// true if current run server is php build_in_server(cli-server)

Is\Is::ssl(); 
// true if current run server protocol is 'ssl'

Is\Is::localhost(); 
// true if current run server ip is 'localhost' or 127.0.0.1

Is\Is::host('www.google.com'); 
// true if current run server host name is 'www.google.com'

Is\Is::host_ip('192.168.56.101'); 
// true if current run server host ip address '192.168.56.101'

Is\Is::chorme();
// true if current browser is chrome 

Is\Is::firefox();
// true if current browser is firefox 

Is\Is::safari();
// true if current browser is safari

Is\Is::opera();
// true if current browser is opera

Is\Is::ie();
// true if current browser is ie

Is\Is::ie(8);
// true if current brower is ie version 8

Is\Is::ios(); 
// true if current device has iOS

Is\Is::android(); 
// true if current device has Android OS

Is\Is::mobile(); 
// true if current device is mobile (phone)

Is\Is::tablet(); 
// true if current device is tablet

Is\Is::request_get(); 
// true if current request is GET request

Is\Is::request_post(); 
// true if current request is POST request

Is\Is::request_put(); 
// true if current request is PUT request

Is\Is::request_patch(); 
// true if current request is PATCH request

Is\Is::request_delete(); 
// true if current request is DELETE request

Is\Is::http_status_code('http://google.com',302); 
// true if http://google.com is responsed http_status_code 302

Is\Is::same_type(1,2);
// true 

Is\Is::same_type('1',2);
// false

Is\Is::str_include('nick','n');
// true 

Is\Is::str_include('test','text);
// false