Laravel does not include any sockets.
https://laravel.com/docs/5.7/broadcasting#driver-prerequisites
Thanks a lot to
enable socket
https://stackoverflow.com/questions/1361925/how-to-enable-socket-in-php
And, I used xamp for instlation of laravel which surely supports normal php.
xamp
https://www.wikihow.com/Install-Laravel-Framework-in-Windows
So, php.ini is in "C:\xampp\php\"
;extension=soap
extension=sockets
;extension=sqlite3
;extension=tidy
;extension=xmlrpc
;extension=xsl
