/****************************************************************************************************************/
/*Description: This code will implement how to perform email validation for form submission by using using php. */
/* For information, please visit https://www.mailboxvalidator.com/ */
/****************************************************************************************************************/
/* You can obtain a free account at https://www.mailboxvalidator.com/pay/9 */
<html>
<head>
<title>Sign Up Page</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" type="text/css" href="css/bootstrap.min.css">
<link rel="stylesheet" href="css/bootstrap-theme.min.css">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<link rel="stylesheet" type="text/css" href="login_form.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<script src="https://code.jquery.com/jquery-1.12.4.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/1000hz-bootstrap-validator/0.11.5/validator.min.js"></script>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet"></link>
</head>
<body>
<div class="login">
<div class="login_container">
<div class="login_panel panel panel-default">
<div class="panel-body">
<h1 id="textHead" class="text-center">Sign Up</h1>
<hr>
<form data-toggle="validator" name="login_form" id="textContent" class="form-horizontal" method="post" action="su.php">
<div class="form-group">
<label class="control-label col-sm-3"></label>
<div class="col-sm-12">
<h4>Email:</h4>
<input type="text" data-error="Please enter your email field" class="form-control" name="email" placeholder="Enter email" id="email" required>
<!--Check whether the field is empty-->
<div class="help-block with-errors"></div>
</div>
</div>
<p id="email"></p>
<div class="form-group">
<label class="control-label col-sm-3"></label>
<div class="col-sm-12">
<h4>Password:</h4>
<!--Set the minimum length of password-->
<input type="password" data-error="Please enter minimum of 6 characters." data-minlength="6" class="form-control" name="password" placeholder="Enter password" id="password" required>
<!--Check whether the field is empty-->
<div class="help-block with-errors"></div>
</div>
</div>
<div class="form-group">
<label class="control-label col-sm-3"></label>
<div class="col-sm-12">
<h4>Confirm Password:</h4>
<input type="password" data-error="Please reenter password" class="form-control" name="password" placeholder="Enter password" id="password" data-match="#password" data-match-error="Password does not match" required>
<!--Check whether the field is empty-->
<div class="help-block with-errors"></div>
</div>
</div>
<p id="password"></p>
<div class="form-group">
<div class="col-sm-12">
<input type="Submit" class="btn btn-block btn-default btn-info" value="Sign Up">
</div>
</div>
</form>
</div>
</div>
</div>
</div>
</body>
</html>
<?php
session_start();
$servername = "localhost";
$email = "root";
$password = "";
$database = "";
// Create connection to database
$conn = new mysqli($servername, $email, $password,$database);
$apiKey = 'Enter your API key';
$query = '';
if(!empty($_POST['email']) && !empty($_POST['password']))
{
$email = $_POST['email'];
$pass = $_POST['password'];
$params['email']= $email;
//Validate the email through MailboxValidator
foreach($params as $key=>$value)
{
$query .= '&' . $key . '=' . rawurlencode($value);
}
$try = 0;
do
{
////////////
//For https request, please make sure you have enabled php_openssl.dll extension.
//
//How to enable https
//- Uncomment ;extension=php_openssl.dll by removing the semicolon in your php.ini, and restart the apache.
//
//In case you have difficulty to modify the php.ini, you can always make the http request instead of https.
////////////
$result = file_get_contents('https://api.mailboxvalidator.com/v1/validation/single?key=' . $apiKey . $query);
}while(!$result && $try++ < 3);
$data = json_decode($result);
//Check if query is success
if ($data->is_syntax=='True')
{
//Get the data from database
$query_email = "SELECT email FROM signup WHERE email='$email'";
$query_run_email = mysqli_query($conn,$query_email);
//Check the input with database
if (mysqli_num_rows($query_run_email))
{
header( "refresh:0; url= signup.php" );
echo '<script language="javascript">';
echo 'alert("Email already exists")';
echo '</script>';
}
else
{
//Insert data into database
$sql = "INSERT INTO signup(email,password)VALUES ('$email', '$pass')";
mysqli_query($conn, $sql);
//The message of account create successful
header( "refresh:0; url= signup.php" );
echo '<script language="javascript">';
echo 'alert("Account created successful")';
echo '</script>';
}
}
else
{
//Error message of validation
header( "refresh:0; url= signup.php" );
echo '<script language="javascript">';
echo 'alert("Account created failed, please enter a valid email!")';
echo '</script>';
}
/* if need more information below is the example of error message
else if ($data->is_free=='True')
{
header( "refresh:0; url= signup.php" );
echo '<script language="javascript">';
echo 'alert("Account created failed, free email are not supported!")';
echo '</script>';
}
else if ($data->is_domain=='False')
{
header( "refresh:0; url= signup.php" );
echo '<script language="javascript">';
echo 'alert("Account created failed, please make sure your domain name is correct.")';
echo '</script>';
}
else if ($data->is_suppressed == 'True')
{
header( "refresh:0; url= signup.php" );
echo '<script language="javascript">';
echo 'alert("Account created failed, your email address has been blacklisted!")';
echo '</script>';
}
else if ($data->is_verified == 'False')
{
header( "refresh:0; url= signup.php" );
echo '<script language="javascript">';
echo 'alert("Account created failed, please enter a verified email!")';
echo '</script>';
}
*/
}
?>
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