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);
     }