create cron job for send automaticaly sms to users

Here Get login code with API https://www.smsstriker.com/sms-gateway-a...vices.html
$username = "YOURAPIUSERID";
$password = "YOUAPIPASSWORD";
$data = "username="."$username"."
&password="."$password"."&to="."$numbers"."&type=1&dnd_check=0";
$ch = curl_init();
curl_setopt($ch,CURLOPT_URL,$data);
$response = curl_exec($ch);
curl_close($ch);
echo $response;
?>