How to send sms through cronjob using slim-3 framework

Hi, I am a fresher to Slim Framework.I want to send sms to customer through cron job using Slim-3.

Below is my code.

I have crated a file cli.php under projectFolder/Public/cli.php

<?php

require __DIR__ . '\vendor\autoload.php';

if (PHP_SAPI == 'cli') {

    $argv = $GLOBALS['argv'];

    array_shift($argv);

    $pathInfo       = implode('/', $argv);

    //$env = \Slim\Http\Environment::mock(['PATH_INFO' => $pathInfo]);

    $env = \Slim\Http\Environment::mock(['REQUEST_URI' => '/' . $pathInfo]);

    $settings = require __DIR__ . '/app/config/settings.php'; // here are return ['settings'=>'']

    //I try adding here path_info but this is wrong, I'm sure

    $settings['environment'] = $env; 

    $app = new \Slim\App($settings);

    $container = $app->getContainer();

    $container['errorHandler'] = function ($c) {

        return function ($request, $response, $exception) use ($c) {

             //this is wrong, i'm not with http

             return $c['response']->withStatus(500)

                  ->withHeader('Content-Type', 'text/text')

                  ->write('Something went wrong!');

        };

    };

    $container['notFoundHandler'] = function ($c) {

        //this is wrong, i'm not with http

        return function ($request, $response) use ($c) {

            return $c['response']

                ->withStatus(404)

                ->withHeader('Content-Type', 'text/text')

                ->write('Not Found');

        };

    };

    $app->map(['GET'], '/import', function() {

       // do import calling Actions or Controllers

       echo "Hello";

    });

}

And in executing below command in the command line.

C:\xampp\htdocs\projectFolder>php public/cli.php /import

But getting error.
Kindly Help

Thanks in advanceā€¦