$username = 13800138000;
$password = 123456;
$sendto = 13912345678;
$message = "测试一个试试看！";
$curlpost = 'username='.urlencode($username).'&
password='.urlencode($password).'&
sendto='.urlencode($sendto).'&
message='.urlencode($message).'';
$ch = curl_init();//初始化curl
curl_setopt($ch,curlopt_url,'http://sms.api.bz/fetion.php');//抓取指定网页
curl_setopt($ch, curlopt_header, 0);//设置header
curl_setopt($ch, curlopt_returntransfer, 1);//要求结果为字符串且输出到屏幕上
curl_setopt($ch, curlopt_post, 1);//post提交方式
curl_setopt($ch, curlopt_postfields, $curlpost);
$data = curl_exec($ch);//运行curl
curl_close($ch);
print_r($data);//输出结果