The URL – http://mobile.samplephpcodes.com/sendsms.php – can be invoked with the parameters as follows:
http://mobile.samplephpcodes.com/sendsms.php?uid=9933445566&pwd=password&phone= 9812345678;9933445566&msg=Hello+World
You can also do a HTTP POST to the same URL to send the SMS. Here’s an example:
Create an account on way2sms.com and use that mobile number as userid and password
save the following code as sendsms.php and use the above html post or the url GET method

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if(!function_exists('stripos'))     {         function stripos($haystack, $needle, $offset = 0)         {             return strpos(strtolower($haystack), strtolower($needle), $offset);         }     }       if ( isset($_GET['uid']) && isset($_GET['pwd']) && isset($_GET['phone']) && isset($_GET['msg']) )     {         echo sendSMSToMany($_GET['uid'], $_GET['pwd'], $_GET['phone'], $_GET['msg']);         exit;     }     else if ( isset($_POST['uid']) && isset($_POST['pwd']) && isset($_POST['phone']) && isset($_POST['msg']) )     {       $smsg=stripslashes($_POST['msg']);           echo 'sendSMSToMany('.$_POST['uid'].','. $_POST['pwd'].','. $_POST['phone'].','.$smsg.')';                 echo sendSMSToMany($_POST['uid'], $_POST['pwd'], $_POST['phone'],$smsg);         exit;     }       function sendSMSToMany($uid, $pwd, $phone, $msg)     {         $curl = curl_init();         $timeout = 30;         $ret = "";           $uid = urlencode($uid);         $pwd = urlencode($pwd);           curl_setopt ($curl, CURLOPT_URL, "http://wwwd.way2sms.com/auth.cl");         curl_setopt ($curl, CURLOPT_POST, 1);         curl_setopt ($curl, CURLOPT_POSTFIELDS, "username=" . $uid . "&password=" . $pwd . "&q=Deepika%20Padukone%20Photo%20Gallery&Submit=Sign in");         curl_setopt ($curl, CURLOPT_COOKIESESSION, 1);         curl_setopt ($curl, CURLOPT_COOKIEFILE, "cookie_way2sms");         curl_setopt ($curl, CURLOPT_FOLLOWLOCATION, 1);         curl_setopt ($curl, CURLOPT_MAXREDIRS, 20);         curl_setopt ($curl, CURLOPT_RETURNTRANSFER, 1);         curl_setopt ($curl, CURLOPT_USERAGENT, "Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.0.5) Gecko/2008120122 Firefox/3.0.5");         curl_setopt ($curl, CURLOPT_CONNECTTIMEOUT, $timeout);         curl_setopt ($curl, CURLOPT_REFERER, "http://wwwd.way2sms.com/");         $text = curl_exec($curl);           // Check for proper login         $pos = stripos(curl_getinfo($curl, CURLINFO_EFFECTIVE_URL), "main.jsp");         if ($pos === "FALSE" || $pos == 0 || $pos == "")             return "invalid login";           if (trim($msg) == "" || strlen($msg) == 0) return "invalid message";         $msg = urlencode($msg);         $pharr = explode(";", $phone);         $refurl = curl_getinfo($curl, CURLINFO_EFFECTIVE_URL);         curl_setopt ($curl, CURLOPT_REFERER, $refurl);         curl_setopt ($curl, CURLOPT_URL, "http://wwwd.way2sms.com/jsp/InstantSMS.jsp");         $text = curl_exec($curl);           //echo $text; exit;           preg_match_all('/]*)?"/si', $text, $match);           $action=$match[1][0]; // get custid from the form fro the Action field in the post form           foreach ($pharr as $p)         {             if (strlen($p) != 10 || !is_numeric($p) || strpos($p, ".") != false)             {                 $ret .= "invalid number;" . $p . "\n";                 continue;             }               $p = urlencode($p);               curl_setopt ($curl, CURLOPT_URL, 'http://wwwd.way2sms.com/FirstServletsms?custid=');             curl_setopt ($curl, CURLOPT_REFERER, curl_getinfo($curl, CURLINFO_EFFECTIVE_URL));             curl_setopt ($curl, CURLOPT_POST, 1);             curl_setopt ($curl, CURLOPT_POSTFIELDS, "HiddenAction=instantsms&login=&pass=&custid=undefined&Action=".$action."&MobNo=".$p."&textArea=".$msg);             $contents= curl_exec($curl);             $_SESSION['count']++;         }           curl_setopt ($curl, CURLOPT_URL, "http://wwwd.way2sms.com/jsp/logout.jsp");         curl_setopt ($curl, CURLOPT_REFERER, $refurl);         $text = curl_exec($curl);           curl_close($curl);           echo '##'.$contents;         preg_match_all('/?([^>]*)?<\/span>/si', $contents, $match);           if(!isset($match[1][0]) || $match[1][0]=="")           echo 'Message can not be submitted';         else           echo $match[1][0];       }       if ( file_exists("nusoap/nusoap.php") ) {         require ("nusoap/nusoap.php");         if ( !class_exists("soap_server") ) {             printUsage();         }     } else {         printUsage();     }       $server = new soap_server();     $server->configureWSDL('SendSMS','urn:sms');     $server->register("sendSMSToMany",                       array('uid' => 'xsd:string', 'pwd' => 'xsd:string', 'phone' => 'xsd:string', 'msg' => 'xsd:string'),                       array('status' => 'xsd:string'),                       'urn:SendSMSToMany', 'urn:sms#SendSMSToMany', 'rpc', 'encoded',                       'Sends the same SMS to multiple phone numbers. Give your 10 digit phone number for user ID. Separate each phone number with a semicolon(\';\').');     $HTTP_RAW_POST_DATA = isset($HTTP_RAW_POST_DATA) ? $HTTP_RAW_POST_DATA : '';     $server->service($HTTP_RAW_POST_DATA);       function printUsage() {         $nl = "\r\n";         echo "invalid_request" . $nl;         //echo "Usage: Refer to http://www.samplephpcodes.com for more informaiton." . $nl;         exit;     } ?>   When You Upload Your Page Type Your way2sms Username And Password  Input Your Friedns Phone No.  Type Your Message Click Send Button If You Got This 1 Message has been submitted successfully   Now Go Back Click Again Send Button 1 Message has been submitted successfully   And Do this step AGain and again