PHP Email

Email validation is a required action before submitting the user input in the server-side. It checks whether the user has provided a valid email address. Here’s the absolute easiest and effective way to validate an email address using PHP.

The filter_var() function in PHP, provides an easy way for email validation. Use FILTER_VALIDATE_EMAIL filter to validate email address in PHP. The filter_var() function returns the filtered data on success, or FALSE on failure.


$email = "john.doe@example.com";

// Validate email
if(filter_var($email, FILTER_VALIDATE_EMAIL)){
    echo "$email is a valid email address";
}else{
    echo "$email is not a valid email address";
}


 mail($to, $subject, $message, $headers);

Emailing form data:


if ($_SERVER['REQUEST_METHOD'] == 'POST') {

    $to = $_POST['recipient_name'] . "<{$_POST['recipient_email']}>";
    $subject = $_POST['subject'];
    $body = $_POST['body'];
    $headers =
        "From: John Doe <johndoe@example.com>\r\n"
      . "X-Sender: <johndoe@example.com>\r\n"
      . "X-Mailer: PHP\r\n"
      . "X-Priority: 1\r\n"
      . "Return-Path: <johndoe@example.com>\r\n";
      
    mail($to, $subject, $body, $headers);
}

How to send Cc and Bcc


if ($_SERVER['REQUEST_METHOD'] == 'POST') {

    $to = $_POST['recipient_name'] . "<{$_POST['recipient_email']}>";
    $subject = $_POST['subject'];
    $body = $_POST['body'];
    $headers =
        "From: John Doe <johndoe@example.com>\r\n"
      . "X-Sender: <johndoe@example.com>\r\n"
      . "Bcc: janedoe@example.com\r\n"
      . "Cc: joedoe@example.com\r\n";

    mail($to, $subject, $body, $headers);
}

Sending HTML Formatted Emails

You can send HTML emails by sending the additional Content-type and MIME-Version headers:


$headers[] = 'MIME-Version: 1.0';
$headers[] = 'Content-type: text/html; charset=iso-8859-1';

Example: Sending HTML mails in PHP:


if ($_SERVER['REQUEST_METHOD'] == 'POST') {

    $to = $_POST['recipient_name'] . "<{$_POST['recipient_email']}>";
    $subject = $_POST['subject'];
    $body =
        "<html>
           <head>
             <title>The Suggestion Form</title>
           </head>
           <body>
             <h1>$subject</h1>
             <p>".nl2br($_POST['body'])."</p>
           </body>
         </html>";
  
    $headers =
        "From: John Doe <johndoe@example.com>\r\n"
      . "MIME-Version: 1.0\r\n"
      . "Content-type: text/html; charset=UTF-8\r\n"

      . "X-Sender: <johndoe@example.com>\r\n"
      . "X-Mailer: PHP\r\n"
      . "X-Priority: 1\r\n"
      . "Return-Path: <johndoe@example.com>\r\n";

    mail($to, $subject, $body, $headers);
 }