CodeEmail.php

<?php
    session_start();
  include('DbConnection.php');
  use PHPMailer\PHPMailer\PHPMailer;
    use PHPMailer\PHPMailer\Exception;
    use PHPMailer\PHPMailer\SMTP;
if (isset($_POST['send_otp_btn'])){
    $email = $_POST['email'];
    $sql = "SELECT * FROM users WHERE email = '$email'";
    $result = mysqli_query($conn, $sql);
    $count = mysqli_num_rows($result);
    if($count>0){
        $randomNumber = rand(100000, 999999);
       $_SESSION['otp']=$randomNumber;
       sendemail_verify("$email","$randomNumber");
       $_SESSION['status']="OTP sent successfully";
       $_SESSION['email']=$email;
       header("location:VerificationCode.php");

    }
    else{
        $_SESSION['status']="User not found.Please enter valid email or create an new account.";
        header('location:EnterEmail.php');
    }
 }
 function sendemail_verify($email,$randomNumber){
    require 'PHPMailer/PHPMailer.php';
    require 'PHPMailer/Exception.php';
    require 'PHPMailer/SMTP.php';
       
       $mail = new PHPMailer(true);
       try {
           //Server settings
           $mail->isSMTP();                                            //Send using SMTP
           $mail->Host       = 'smtp.gmail.com';                     //Set the SMTP server to send through
           $mail->SMTPAuth   = true;                                   //Enable SMTP authentication
           $mail->Username   = 'iitspl89@gmail.com';                     //SMTP username
           $mail->Password   = 'yywtcjssestdopzb';                               //SMTP password
           $mail->SMTPSecure = PHPMailer::ENCRYPTION_SMTPS;            //Enable implicit TLS encryption
           $mail->Port       = 465;                                    //TCP port to connect to; use 587 if you have set `SMTPSecure = PHPMailer::ENCRYPTION_STARTTLS`
       
           //Recipients
           $mail->setFrom('iitspl89@gmail.com', 'Mailer');
           $mail->addAddress($email);     //Add a recipient
          
   
       
           //Content
           $mail->isHTML(true);                                  //Set email format to HTML
           $mail->Subject = 'OTP'; 
           $email_template="
           <h2>Hello, You have requested for password reset in Sign Language Detection System</h2>
           <br />
           <h2>Use this OTP get verified : {$randomNumber}</h2>
           <br/>
           ";
           $mail->Body    = $email_template;
       
           $mail->send();
           return true;
       } catch (Exception $e) {
          return false;
      //  echo "Message could not be sent. Mailer Error: {$mail->ErrorInfo}";
       }
   
   }
?>