$firstname = $_POST['first_name'];
        $lastname = $_POST['lastname'];
        $username = $_POST['username'];
        $email = $_POST['email'];
        $confirmemail = $_POST['confirmemail'];
        $password = $_POST['pass_id'];
        $confirmpassword = $_POST['confirmpassword'];
        $phone = $_POST['phone'];
        if($lastname !=''&& $firstname!=''&& $username !=''&& $email!=''&& $confirmemail !=''&&$password!=''&& $confirmpassword!=''&&$phone!='') {
            if(isset($firstname,$lastname,$username,$email,$confirmemail,$password,$confirmpassword,$phone)){
            global $conn;
        $firstname = mysqli_real_escape_string($conn,$_POST['first_name']);
        $lastname = mysqli_real_escape_string($conn,$_POST['lastname']);
        $username = mysqli_real_escape_string($conn,$_POST['username']);
        $email = mysqli_real_escape_string($conn,$_POST['email']);
        $confirmemail = mysqli_real_escape_string($conn,$_POST['confirmemail']);
        $password = mysqli_real_escape_string($conn,$_POST['pass_id']);
        $confirmpassword = mysqli_real_escape_string($conn,$_POST['confirmpassword']);
        $phone = mysqli_real_escape_string($conn,$_POST['phone']);
        if($email==$confirmemail){
            if(preg_match("^(?=.*[a-z])(?=.*[A-Z])(?=.*d)(?=.*[$@$!%*?&])[A-Za-zd$@$!%*?&]{8,}^",$_POST['pass_id'])==true){

                if($password ==$confirmpassword){
                    if(preg_match("/\s/",$_POST['username'])!=true){
                        if(user_exists($_POST['username'])!= true){
                            if(email_checking($email)!=false){

                    echo"you have sucessfuly regestered!check your email to activated your account";
                            }else{
                            echo "email is already in use";
                            }
                        }else{
                            echo "user exists";
                        }
                    }else{
                        echo"username must not contain any spaces";
                    }
                }else{
                    echo "password did not match";
                }

            }else{
                echo"Password should be 8 minimum and must contain atleast 1Upcase,1 number and 1 spacial character(example:someOne@123)";


            }
        }else{
            echo "email did not match";
        }


            }

            }else{
            echo "please fill all the fields!!";

            }

function divsub(){
    var firstname= document.getElementById('first_name').value;
    var lastname= document.getElementById('lastname').value;
    var username= document.getElementById('username').value;
    var email= document.getElementById('email').value;
    var emailconfirm= document.getElementById('confirmemail').value;
    var pass= document.getElementById('pass_id').value;
    var passconfrim= document.getElementById('confirmpassword').value;
    var phone= document.getElementById('phone').value;
    var datastring = 'first_name='+firstname+'&lastname='+lastname+'&username='+username+'&email='+email+'&confirmemail='+emailconfirm+'&pass_id='+pass+'&confirmpassword='+passconfrim+'&phone='+phone;
    $.ajax({

        type:"POST",
        url:"regestration.php",
        data:datastring,
        cache:false,
        success:function(html){
        if(html=== "you have sucessfuly regestered!check your email to activated your account"){
         window.location.href = "rregsuccess.php";

        }else{
        $('#resto').html(html);

        }




        }

    });
    return false;
}