SMS sending through free gateway

Please guide me with sample code for sending sms through website. How to include sms gateway. Please tell me, can i use way2sms.com as gateway?

is it the right way to use? please suggest me only this much of code works?

<?php
error_reporting(E_ALL);
ob_implicit_flush(true);


include_once "class.curl.php";
include_once "class.sms.php";

$smsapp=new sms();
$smsapp->setGateway('way2sms'); 


echo "Logging in  ... ";
$smsapp->login('10 digit number','way2sms password');

echo "Sending SMS ... ";
$result=$smsapp->send('receipient number','text message');

if($result=='true')
{
    echo "Message sent";
}
else
{   
    echo "Error encountered : ".$smsapp->getLastError();
}

?>

here is my class.curl.php

<?php
class sms
{
    var $username;
    var $password;
    var $curl;
    var $server;
    var $loginDone;
    var $debugMode;
    var $data;
    var $error;
    public function __construct()
    {
        $this->curl=new cURL();
    //  $this->curl->setProxy("");
        $this->loginDone=false;
        $this->debugMode=false;
        $this->data=array();
    }
    public function setGateway($serverName)
    {
        switch($serverName)
        {
            case '160by2':
            $this->server='160by2';
            break;

            case 'way2sms':
            $this->server='way2sms';
            break;

            case 'airtel':
            $this->server='airtel';
            break;

            default :
            $this->server='way2sms';

        }
    }
    public function login($username,$password)
    {
        $server=$this->server;

        call_user_func(array($this,"login_$server"),$username,$password);
        $this->loginDone=true;

    }
    public function send($number,$msg)
    {
        $server=$this->server;
        if($this->loginDone)
        return call_user_func(array($this,"send_$server"),$number,$msg);
        else
        {
            echo "<h2>Please login first before sending SMS</h2>";
        }

    }
    private function login_way2sms($username,$password)
    {
        $out=($this->curl->post("http://www.way2sms.com","1=1"));
        $pattern="/Location:(.+?)n/";
        preg_match($pattern,$out,$matches);
        $domain=trim($matches[1]);

        $this->data['domain']=$domain;

        $out= $this->curl->post("{$domain}auth.cl","username=$username&password=$password&Submit=Sign+in");

        $pattern="/Location:(.+?)n/";
        preg_match($pattern,$out,$matches);
        $referer=trim($matches[1]);
        $this->data['referer']=$referer;


    }


    private function send_way2sms($number,$msg)
    {
        $domain=$this->data['domain'];
        $html=$this->curl->post("{$domain}jsp/InstantSMS.jsp?val=0","1=1",$this->data['referer']);
        if($this->debugMode)
        {
        echo "<h2>After logging in, the HTML returned by server is</h2>";
        echo $html;
        }

        $pattern = '/name="Action".+?value="(.*)"/';
        preg_match($pattern, $html, $matches);

        $custfrom=$matches[1];
        $msg=urlencode($msg);
        $html=$this->curl->post("{$domain}FirstServletsms?custid=","custid=undefined&HiddenAction=instantsms&Action={$custfrom}&login=&pass=&MobNo=$number&textArea=$msg");
        $pattern = '/class="style1">(.+?)</span>/';
        preg_match($pattern, $html, $matches);
        $out=($matches[1]);

        if(!preg_match("/successfully/",$out))
        {
        $this->setError($out);
        return false;
        }
        else
        {
        return true;
        $this->setError("No errors");
        }

    }
    public function getLastError()
    {
        return $this->error;

    }
    private function setError($error)
    {
        $this->error=$error;
    }
    private function login_160by2($username,$password)
    {
    //  $out2=$this->curl->get("http://m.160by2.com");
        $out=$this->curl->post("http://m.160by2.com/LoginCheck.asp?l=1&txt_msg=&mno=","txtUserName=$username&txtPasswd=$password&RememberMe=Yes&cmdSubmit=Login");
        $pattern="/MyMenu.asp?Msg=(.+?)&/";

        preg_match($pattern,$out,$matches);
        $id=trim($matches[1]);
        $this->data['id']=$id;

    }

    private function send_160by2($number,$msg)
    {
        $msg=urlencode($msg);
        $id=$this->data['id'];
        $out1=$this->curl->post("http://m.160by2.com/SaveCompose.asp?l=1","txt_mobileno=$number&txt_msg=$msg&cmdSend=Send+SMS&TID=&T_MsgId=&Msg=$id");
        //echo $out1;
        $pattern = '/<table.+?>(.+)</table/s';
        preg_match($pattern, $out1, $matches);

        $out=strip_tags(@$matches[1]);
        if(count($matches)<1)
        {
        $pattern="/<div.+?background:.+?yellow.+?>(.+?)</div>/s";

        preg_match($pattern,$out1,$matches);

        $out=strip_tags($matches[1]);
        }

//
    //  echo "out is $out";

        if(!preg_match("/successfully/i",$out))
        {

        $this->setError($out);

        return false;
        }
        else
        {
        return true;
        $this->setError("No errors");
        }

    }

    private function login_airtel($username,$password)
    {
        $this->data['username']=$username;
        $this->data['password']=$password;

    }


    private function send_airtel($number,$msg)
    {

    }
}

?>

in the place of username and password, which username and password i should use?

Answer

Yeah, or you could use the gateways as provided by the wireless carriers themselves, as then it’s as simple as sending them an email with PHP’s mail function.

Where (Number) is, you must include their 10 digit phone number. So that means that you must include their area code.

AT&T (Number)@txt.att.net

T-Mobile (Number)@tmomail.net

Sprint (Number)@messaging.sprintpcs.com

Verizon (Number)@vtext.com OR (Number)@vzwpix.com