How to validate an Email using PHP

How to validate an Email using PHP

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How to validate an Email using PHP

 

In This Article, i will create a Form to collect User’s  Email .

The User is Required to enter an Email into the Input box . Behind the back end, the PHP Script will validate whether the User has entered a correct Email format.

If the User entered a correct Format , the PHP Script will insert the User Email into MySQL Database.

Stepping through the code i will show you how to validate an Email using PHP.

 

Code for  Validate an Email  with PHP As Below

 


<?php

// Include connection config file
include ("C:/xampp/htdocs/dbconnection.php");

$userMail="";

$usermail_err ="";
$emailBit = true;

// Check whether Email Domain Exist
function check_email_server($e){
	
	$usermail_txt="";
	
	$host = explode('@',$e);
	
	if (checkdnsrr($host[1].'.','MX')){
		
		 $emailBit = True;
	}
	
	else{ 
	
	  $usermail_txt = "Email Domain Not Valid.";
	  
	  $emailBit = False;
	
	}
	
	
	return $usermail_txt;
	
	
}



// Processing form data when form is submitted

if($_SERVER["REQUEST_METHOD"] == "POST"){
	
	if ($dbSuccess) {
		
	// Check If User Enter Emails
	
	  $enterEmail=$_POST["tag_userMail"];
	
	  //check Whther the User enter Anything
	
	  if(empty(trim($enterEmail))){
        $usermail_err = "Please enter Your Email.";
		$emailBit = False;
		
       }
	   
	  // Check the Email Format is Correct
	  
	  if (!filter_var($enterEmail, FILTER_VALIDATE_EMAIL)) {
           $usermail_err = "Invalid email format";
		   
		   $emailBit = False;
	   
       }
	   
	   
	  // If Email Format is Correct
	  
	  if (filter_var($enterEmail, FILTER_VALIDATE_EMAIL)){
		  
		     // Check whether the email Domain Existed when Email Format is Correct
		  
		     $usermail_err =check_email_server($enterEmail);
		  
	  }
	  
	  
	  if($emailBit) {
		  
		  // Prepare the SQL Statement  and execute
		  
		
		  
		  $email_SQL ='INSERT INTO emailstore (email)VALUES('.'"'.$enterEmail.'"'.')';
		  
		  
		  if ($dbConnectionStatus->query($email_SQL))  {	
		  
		      echo "  Email Inserted";
	 
		  
		  }
		  
		  
		  
		  
	  }
	  
	
		
		
	}



}

?>



<!DOCTYPE html>
<html lang="en">

<head>

    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.css">
    <style type="text/css">
        body{ font: 14px sans-serif; }
        .wrapper{ width: 350px; padding: 20px; }
    </style>    



</head>
<body>
   <div class="wrapper">
         <p>Please Enter Your Email</p>
   
          <form action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]); ?>" method="post">
		  
		         <input type="text" name="tag_userMail" class="form-control" value="<?php echo $userMail; ?>">
                 <span class="help-block"><?php echo $usermail_err; ?></span>
   
                  <div class="form-group">
				  
				  <input type="submit" class="btn btn-primary" value="Submit Your Email">

                 </div>
          </form>


   </div>   


</body>
</html>

 

validate email form
validate email form

Check Out How to Install Mamp or xampp with phpMyAdmin here

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