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How to integrate OTP in signup form in PHP MVC


In this example we using Models, Views, Controller Structure for otp integartion in signup form PHP MVC.

To otp integartion in signup form PHP MVC first we have to create a Controller file.

controller/hello.php

<?php
class Hello extends Controller {
	function __construct() {
		parent::__construct();
		
	}
	function sign_up(){
			$this->view->render('hello/index');
	}
	function verification(){
			
			if(isset($_POST['submit']))
			{
				Session::set('contact',$_POST['contact']);
				Session::set('name',$_POST['name']);
				Session::set('email',$_POST['email']);
				/*Your authentication key*/
				$authKey = "354555695Abti5JzlQTYb593b5c59";
				/*Multiple mobiles numbers separated by comma*/
				$mobileNumber = $_POST['contact'];
				/*Sender ID,While using route4 sender id should be 6 characters long.*/
				$senderId = "ABCDEF";
				/*Your message to send, Add URL encoding here.*/
				$rndno=rand(1000, 9999);
				Session::set('otp',$rndno);
				$message = urlencode("Your OTP number is : ".$rndno);
				/*Define route */
				$route = "route=4";
				/*Prepare you post parameters*/
				$postData = array(
				'authkey' => $authKey,
				'mobiles' => $mobileNumber,
				'message' => $message,
				'sender' => $senderId,
				'route' => $route
				);
				/*API URL*/
				$url="https://control.msg91.com/api/sendhttp.php";
				/* init the resource */
				$ch = curl_init();
				curl_setopt_array($ch, array(
				CURLOPT_URL => $url,
				CURLOPT_RETURNTRANSFER => true,
				CURLOPT_POST => true,
				CURLOPT_POSTFIELDS => $postData
				/*,CURLOPT_FOLLOWLOCATION => true*/
				));
				/*Ignore SSL certificate verification*/
				curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
				curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
				/*get response*/
				$output = curl_exec($ch);
				/*Print error if any*/
				if(curl_errno($ch))
				{
				echo 'error:' . curl_error($ch);
				}
				curl_close($ch);
			}
			if(isset($_POST['resend']))
			{
				
				/*Your authentication key*/
				$authKey = "354555695Abti5JzlQTYb593b5c59";
				/*Multiple mobiles numbers separated by comma*/
				$mobileNumber = Session::get('contact');
				/*Sender ID,While using route4 sender id should be 6 characters long.*/
				$senderId = "ABCDEF";
				/*Your message to send, Add URL encoding here.*/
				$rndno=Session::get('otp');
				$message = urlencode("Your OTP number is : ".$rndno);
				/*Define route */
				$route = "route=4";
				/* ZPrepare you post parameters*/
				$postData = array(
				'authkey' => $authKey,
				'mobiles' => $mobileNumber,
				'message' => $message,
				'sender' => $senderId,
				'route' => $route
				);
				/*API URL*/
				$url="https://control.msg91.com/api/sendhttp.php";
				/* init the resource*/
				$ch = curl_init();
				curl_setopt_array($ch, array(
				CURLOPT_URL => $url,
				CURLOPT_RETURNTRANSFER => true,
				CURLOPT_POST => true,
				CURLOPT_POSTFIELDS => $postData
				/*,CURLOPT_FOLLOWLOCATION => true*/
				));
				/*Ignore SSL certificate verification*/
				curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
				curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
				/*get response
				$output = curl_exec($ch);
				/*Print error if any */
				if(curl_errno($ch))
				{
				echo 'error:' . curl_error($ch);
				}
				curl_close($ch);
				echo "Otp resend successfully !";
			}
			if(isset($_POST['save']))
			{
				if(Session::get('otp')==$_POST['otp']){
					$data = array(
						'id'=> null,
						'name' =>Session::get('name'),
						'email' =>Session::get('email'),
						'contact' => Session::get('contact')
					);
					$this->model->submit_index($data);
					echo "Signup successful !";
				}
				else{
					echo "Invalid OTP !";
				}
				
				Session::destroy();
			}
			
			$this->view->render('hello/otp_verify');
	}
}

Here is the model file which we are using for inserting data to database.

The file index_model.php is created under Models folder

models/hello_Model.php

index_model.php

<?php
class Hello_Model extends Model
{
	public function __construct()
	{
		parent::__construct();
	}
    public function submit_index($data)
	{
		$this->db->insert('user_data', $data);
	}
}	

Here is the view file index.php which inside views folder contains the form.

views/hello/index.php

<form action="<?php echo URL; ?>hello/verification" method="post" onsubmit="return confirm('Do you really want to submit the form?');">
	<center>
		<input  name="name" id="name" placeholder="Enter name"><br><br>
		<input type="text"  name="email" id="email" placeholder="Enter email"><br><br>
		<input type="text" name="contact" id="contact" placeholder="Enter contact"><br><br>
		<button type="submit" class="btn-info" value="submit" name="submit">Submit</button>
	</center>	
</form>

views/hello/otp_verify.php

<form action="<?php echo URL; ?>hello/verification" method="post" onsubmit="return confirm('Do you really want to submit the form?');">
	<center><input class="" name="otp" id="name" placeholder="Enter OTP"><br><br>
	<button type="submit" class="btn-info" value="submit" name="save">Submit</button>
	<button type="submit" class="btn-info" value="submit" name="resend">Resend</button></center>
</form>
Path: localhost/project_folder_name/view_folder_name/view_filename
Example: localhost/mvc/hello/sign_up