I am getting error when try send sms using laravel-smpp

Question

This is error:socket_close(): Argument #1 ($socket) must be of type Socket, null given, path:/vendor/php-smpp/php-smpp/sockettransport.class.php

Answer 1

Problem was in php version, packet smpp don't work in version 8.0 i change to 7.4 and it worked