function SMSgonderHttpGET($cekayar,$sms,$telno){
$username = $cekayar["netgsm_kullanici"]; //
$password = urlencode($cekayar["netgsm_sifre"]); //
$baslik = $cekayar["netgsm_baslik"];
$url = 'https://api.netgsm.com.tr/sms/send/get/?usercode='.$username.'&password='.$password.'&gsmno='.$telno.'&message='.$sms.'&msgheader='.$baslik;
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
$http_response = curl_exec($ch);
$http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
return array("response" => $http_response, "http_code" => $http_code);
}

foreach($ceksuyeler as $m){ if(empty($telno)) {$telno = $m["tel"];} else{$telno .= ','.$m["tel"]; } }
$gonder = SMSgonderHttpGET($cekayar,$sms,$telno);
if($gonder['http_code'] == 200){
echo'<div style="text-align:center;" class="alert alert-success" role="alert"> Mesaj gönderildi!</div>';
}else{
echo'<div style="text-align:center;" class="alert alert-error" role="alert">Hata : '.$gonder['http_code'].' '.$gonder['response'].' </div>';
}