Untitled

<?php
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "mahamed_hassan";

// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}

if (ISSET($_POST['addinfo'])) {

    if (!empty($_POST['firstname'])) {

        $firstname = $_POST['firstname'];

        if (!empty($_POST['lastname'])) {

            $lastname = $_POST['lastname'];

            if (!empty($_POST['email'])) {

                $email = $_POST['email'];

                if (!empty($_POST['phone'])) {

                    $phone = $_POST['phone'];

                    if (!empty($_POST['country'])) {

                    $country = $_POST['country'];


                    $sql = "INSERT INTO tbl1_info (firstname, lastname, email, phone, country)
                    VALUES ('$firstname', '$lastname', '$email','$phone','$country')";

                    if ($conn->query($sql) === TRUE) {
                        echo "Successfully Add Info :) ";
                    } else {
                        echo "Error: Insert In Table <br>";
                    }

                    }else{  $msg = "Plz Complete Country !"; }

                }else{  $msg = "Plz Complete Phone !"; }

            }else{  $msg = "Plz Complete Email !"; }

        }else{  $msg = "Plz Complete Last Name !"; }

    }else{  $msg = "Plz Complete First Name !"; }
}

?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Add Record Form</title>
<style type="text/css">
    form{
    background: green;
        width: 300px;
        padding: 10px;
        font-size: 18px;
        font-family: fantasy;
        color: darkorange;
    }
    input{

        width: 100%;
        border-style: double;
        font-size: 18px;
    }
</style>
</head>
<body>
    <center>
<form action="" method="POST" name="addinfo">
    <p><?php if (!empty($msg)) {?><a style="color: red ;font-size: 20"><?   echo $msg."</a>";}?></p>
    <p>
        <label for="firstName">First Name:</label>
        <input type="text" name="firstname" id="firstName" required>
    </p>
    <p>
        <label for="lastName">Last Name:</label>
        <input type="text" name="lastname" id="lastName" required>
    </p>
    <p>
        <label for="emailAddress">Email Address:</label>
        <input type="email" name="email" id="emailAddress" required>
    </p>
      <p>
        <label for="phone">Phone Nomber:</label>
        <input type="text" name="phone" id="phone" required>
    </p>
    <p>
        <label for="country">Country:</label>
        <input type="text" name="country" id="phone" required>
    </p>
    <input type="submit" value="Submit" name="addinfo">
</form>
</center>
</body>
</html>