Send otp and verify it (in wordpress)

 
//send otp part

 <div class="container">
 <center>
 <h4>Enter Mobile Number</h4>
 <form method="post" action="">
  <input type="text" class="fullrow"  name="phone" placeholder="Enter phone no." >
  <span class="error" style="display:none"></span>
  
  <input class="submit" type="submit" value="Get OTP" name="sotp">
 </form>
 </center>
 </div>
<span class="success" style=""></span>

<script>
 jQuery(document).ready(function($){
  $(".submit").click(function(e){
    e.preventDefault();
    var number = $(".fullrow").val();
    //alert(number);
    
    
      var data = {
        'action':'otp_send',
        'number':number,
      }
      
       $.post(myajax.ajaxurl,data,function(response){
          $(".success").html(response);
       });
   });
 }); 

//verify otp part

 <div class="container">
 <center>
 <h4>Verify OTP</h4>
 <form method="post" action="">
  <input type="text" class="fullrow1"  name="otp" placeholder="Enter OTP" >
  <span class="error" style="display:none"></span>
  
  <input class="submit1" type="submit" value="Submit OTP" name="votp">
 </form>
 </center>
 </div>
 <span class="success1" style=""></span>

<script>
 jQuery(document).ready(function($){
  $(".submit").click(function(e){
    e.preventDefault();
    var number = $(".fullrow").val();
    //alert(number);
      var data = {
        'action':'otp_send',
        'number':number,
      }
      
       $.post(myajax.ajaxurl,data,function(response){
          $(".success").html(response);
       }); 
   });  
 });

// function.php part

function dashboard(){
 echo '<script LANGUAGE="JavaScript">window.location.href="'.site_url().'/home-movies/";</script>';
 }
function verifyotp(){
 echo '<script LANGUAGE="JavaScript">window.location.href="'.site_url().'/verify-otp/";</script>';
 }

 function otp_send(){ 
    $pnumber = $_POST['number'];
 global $wpdb;
    $table_name = $wpdb->prefix . "my_plugintable";
    $results = $wpdb->get_results("select * from $table_name where phone=$pnumber "); 
$count_result = count($results);
 if($count_result > 0){
  //cookie set
  $otp = rand(100000, 999999);
   setcookie('otp', $otp, time()+62208000, '/', $_SERVER['HTTP_HOST']);
 // Authorisation details.
 $username = "sandipstud@gmail.com";
 $hash = "274162474fefea10be75c903a636e74fcf1fcab1d3b1751bc5735075346aef5f";
 // Config variables. Consult http://api.textlocal.in/docs for more info.
 $test = "0";
 // Data for text message. This is the text message data.
 $sender = "TXTLCL"; // This is who the message appears to be from.
 $numbers = "7005974177"; // A single number or a comma-seperated list of numbers
 $message = " Yout OTP Is :" . $otp;
 // 612 chars or less
 // A single number or a comma-seperated list of numbers
 $message = urlencode($message);
 $data = "username=".$username."&hash=".$hash."&message=".$message."&sender=".$sender."&numbers=".$numbers."&test=".$test;
 $ch = curl_init('http://api.textlocal.in/send/?');
 curl_setopt($ch, CURLOPT_POST, true);
 curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
 curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
 $result = curl_exec($ch); // This is the result from the API
 curl_close($ch);
 verifyotp();   
 }
 die();
}
  add_action('wp_ajax_nopriv_otp_send','otp_send');
 add_action('wp_ajax_otp_send','otp_send');


function otp_verify(){
     $otp1 = $_POST['otp']; 
  if($_COOKIE['otp'] == $otp1){
  echo "Your OTP is verified!";
  dashboard() 
   } 
  else{
    echo "You Entered a wrong OTP";
   }; 
 die();
}
 add_action('wp_ajax_nopriv_otp_verify','otp_verify');
 add_action('wp_ajax_otp_verify','otp_verify');

//css (if required)

.container{
 height:400px;
 width:600px;
 background:;
 padding:50px 50px;
 margin:50px auto;
}
.fullrow{
 width:100%;
}
.submit{
 width:40%;
 margin-top:20px;
}