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Revision: 72940
at April 10, 2018 10:38 by Hexasoft
Initial Code 
<?php
/********************************************************************************/
/*Description: This code will demonstrate how to implement the email validation for form submission by 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>';
	 }
	*/
  }		

?>
Initial URL 
https://www.mailboxvalidator.com/resources/articles/email-validation-for-form-submission/
Initial Description 
This code will demonstrate how to implement the email validation for form submission by using php.
You can obtain a free account at https://www.mailboxvalidator.com/pay/9
Initial Title 
Email Validation For Form Submission
Initial Tags 
email
Initial Language 
PHP