asp发送短信功能如何改成php的，有asp例子，求教

If vercode > "" Then
email = "接口短信的用户账号"
SMS_PASSWORD = "接口短信的用户密码"
DescURL = "http://www.xxxx.com.cn/api/send.asp"  //接口地址
Set objHTTP = Server.CreateObject("MSXML2.XMLHTTP")
Call objHTTP.Open("POST", DescURL, FALSE)
PostData = "email="+email+"&Password="+SMS_PASSWORD+"&MsgContent="+((MsgContent))+"&mobileNumber="+ m +"&SendTime="+SendTime+"&SubNumber="+ SubNumber  //一些上边的变量拼接，有用户名，密码，发送手机号等
Response.Write postdata
Call objHTTP.SetRequestHeader("Content-Type","text/html; charset=uft-8")
Call objHTTP.open("GET",DescURL & "?" & PostData, false)
Call objHTTP.send()
end if

class mycurl {
     protected $_useragent = 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1';
     protected $_url;
     protected $_followlocation;
     protected $_timeout;
     protected $_maxRedirects;
     protected $_cookieFileLocation = './cookie.txt';
     protected $_post;
     protected $_postFields;
     protected $_referer ="http://www.xxxx.com.cn/api/send.asp";
 
     protected $_session;
     protected $_webpage;
     protected $_includeHeader;
     protected $_noBody;
     protected $_status;
     protected $_binaryTransfer;
     public    $authentication = 0;
     public    $auth_name      = '';
     public    $auth_pass      = '';
 
     public function useAuth($use){
       $this->authentication = 0;
       if($use == true) $this->authentication = 1;
     }
 
     public function setName($name){
       $this->auth_name = $name;
     }
     public function setPass($pass){
       $this->auth_pass = $pass;
     }
 
     public function __construct($url,$followlocation = true,$timeOut = 30,$maxRedirecs = 4,$binaryTransfer = false,$includeHeader = false,$noBody = false)
     {
         $this->_url = $url;
         $this->_followlocation = $followlocation;
         $this->_timeout = $timeOut;
         $this->_maxRedirects = $maxRedirecs;
         $this->_noBody = $noBody;
         $this->_includeHeader = $includeHeader;
         $this->_binaryTransfer = $binaryTransfer;
 
         $this->_cookieFileLocation = dirname(__FILE__).'/cookie.txt';
 
     }
 
     public function setReferer($referer){
       $this->_referer = $referer;
     }
 
     public function setCookiFileLocation($path)
     {
         $this->_cookieFileLocation = $path;
     }
 
     public function setPost ($postFields)
     {
        $this->_post = true;
        $this->_postFields = $postFields;
     }
 
     public function setUserAgent($userAgent)
     {
         $this->_useragent = $userAgent;
     }
 
     public function createCurl($url = 'nul')
     {
        if($url != 'nul'){
          $this->_url = $url;
        }
 
         $s = curl_init();
 
         curl_setopt($s,CURLOPT_URL,$this->_url);
         curl_setopt($s,CURLOPT_HTTPHEADER,array('Expect:'));
         curl_setopt($s,CURLOPT_TIMEOUT,$this->_timeout);
         curl_setopt($s,CURLOPT_MAXREDIRS,$this->_maxRedirects);
         curl_setopt($s,CURLOPT_RETURNTRANSFER,true);
         curl_setopt($s,CURLOPT_FOLLOWLOCATION,$this->_followlocation);
         curl_setopt($s,CURLOPT_COOKIEJAR,$this->_cookieFileLocation);
         curl_setopt($s,CURLOPT_COOKIEFILE,$this->_cookieFileLocation);
 
         if($this->authentication == 1){
           curl_setopt($s, CURLOPT_USERPWD, $this->auth_name.':'.$this->auth_pass);
         }
         if($this->_post)
         {
             curl_setopt($s,CURLOPT_POST,true);
             curl_setopt($s,CURLOPT_POSTFIELDS,$this->_postFields);
 
         }
 
         if($this->_includeHeader)
         {
               curl_setopt($s,CURLOPT_HEADER,true);
         }
 
         if($this->_noBody)
         {
             curl_setopt($s,CURLOPT_NOBODY,true);
         }
         /*
         if($this->_binary)
         {
             curl_setopt($s,CURLOPT_BINARYTRANSFER,true);
         }
         */
         curl_setopt($s,CURLOPT_USERAGENT,$this->_useragent);
         curl_setopt($s,CURLOPT_REFERER,$this->_referer);
 
         $this->_webpage = curl_exec($s);
                   $this->_status = curl_getinfo($s,CURLINFO_HTTP_CODE);
         curl_close($s);
 
     }
 
   public function getHttpStatus()
   {
       return $this->_status;
   }
 
   public function __tostring(){
      return $this->_webpage;
   }
}
 
$m=new mycurl("http://www.xxxx.com.cn/api/send.asp");
 
//一些上边的变量拼接，有用户名，密码，发送手机号
$m->setPost(Array("email"=> $email, 
"Password"=> $SMS_PASSWORD,
"MsgContent"=> $MsgContent,
"mobileNumber"=> $mobileNumber,
"SendTime"=> $SendTime,
"SubNumber"=> $SubNumber
    ));
$m->createCurl();

?>