curl -X POST -H "user:myusername" -H "password:mypassword" "http://10.243.166.55:8080/CGRequestHandler/Controller?msisdn=8801631752133&vas_id=DFN0100001&trx_id=27859456800706&event_type=1&event_cost=2.44&product_name=beautytips&channel_code=SMS&content_id=&cp_id=DFNMEDIA&circle_id=DEL&opt1=DFNMEDIA&opt2=DFN0100001&opt3=-1&opt4=-1&opt5=-1&validity=1"

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_ENCODING, 'UTF-8');
curl_setopt($ch, CURLOPT_POST, TRUE);
curl_setopt($ch, CURLOPT_POSTFIELDS, $fields_string);
//curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
curl_setopt($ch, CURLOPT_HTTPHEADER, ['username:myusename,password:mypassword']);
//curl_setopt($ch, CURLOPT_USERPWD, "DFN0100001:ZGZuQDE=");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
curl_setopt($ch, CURLOPT_HEADER, TRUE);
curl_setopt($ch, CURLOPT_VERBOSE, TRUE);
$result = curl_exec($ch);