<!-- This is Row Level -->


<?php
// Naming Constant
define( "RECIPIENT_NAME", "John Doe" );
define( "RECIPIENT_EMAIL", "someone@mail.com" );

// Values
$success = false;
$senderName = isset( $_POST['username'] ) ? preg_replace( "/[^\.\-\' a-zA-Z0-9]/", "", $_POST['username'] ) : "";
$senderEmail = isset( $_POST['email'] ) ? preg_replace( "/[^\.\-\_\@a-zA-Z0-9]/", "", $_POST['email'] ) : "";
$subject = isset( $_POST['subject'] ) ? preg_replace( "/[^\.\-\' a-zA-Z0-9]/", "", $_POST['subject'] ) : "";
$message = isset( $_POST['message'] ) ? preg_replace( "/(From:|To:|BCC:|CC:|Subject:|Content-Type:)/", "", $_POST['message'] ) : "";

// Send the email
if ( $senderName &amp;amp;amp;amp;amp;amp;amp;amp;amp;&amp;amp;amp;amp;amp;amp;amp;amp;amp; $senderEmail &amp;amp;amp;amp;amp;amp;amp;amp;amp;&amp;amp;amp;amp;amp;amp;amp;amp;amp; $message ) {
 $recipient = RECIPIENT_NAME . " &amp;amp;amp;amp;amp;amp;amp;amp;lt;" . RECIPIENT_EMAIL . "&amp;amp;amp;amp;amp;amp;amp;amp;gt;";
 $headers = "From: " . $senderName . " &amp;amp;amp;amp;amp;amp;amp;amp;lt;" . $senderEmail . "&amp;amp;amp;amp;amp;amp;amp;amp;gt;";
 $success = mail( $recipient, $subject, $message, $headers );
 //Set Location
 header('Location: index.html');
}
<?php
// Naming Constant
define( "RECIPIENT_NAME", "John Doe" );
define( "RECIPIENT_EMAIL", "someone@mail.com" );

// Values
$success = false;
$senderName = isset( $_POST['username'] ) ? preg_replace( "/[^\.\-\' a-zA-Z0-9]/", "", $_POST['username'] ) : "";
$senderEmail = isset( $_POST['email'] ) ? preg_replace( "/[^\.\-\_\@a-zA-Z0-9]/", "", $_POST['email'] ) : "";
$subject = isset( $_POST['subject'] ) ? preg_replace( "/[^\.\-\' a-zA-Z0-9]/", "", $_POST['subject'] ) : "";
$message = isset( $_POST['message'] ) ? preg_replace( "/(From:|To:|BCC:|CC:|Subject:|Content-Type:)/", "", $_POST['message'] ) : "";

// Send the email
if ( $senderName &amp;amp;amp;amp;amp;amp;amp;amp;amp;&amp;amp;amp;amp;amp;amp;amp;amp;amp; $senderEmail &amp;amp;amp;amp;amp;amp;amp;amp;amp;&amp;amp;amp;amp;amp;amp;amp;amp;amp; $message ) {
 $recipient = RECIPIENT_NAME . " &amp;amp;amp;amp;amp;amp;amp;amp;lt;" . RECIPIENT_EMAIL . "&amp;amp;amp;amp;amp;amp;amp;amp;gt;";
 $headers = "From: " . $senderName . " &amp;amp;amp;amp;amp;amp;amp;amp;lt;" . $senderEmail . "&amp;amp;amp;amp;amp;amp;amp;amp;gt;";
 $success = mail( $recipient, $subject, $message, $headers );
 //Set Location
 header('Location: index.html');
}
?>



<!-- This is Row Level End -->


<!-- This is HTML Code -->


<form action="contact-form.php">
 <input type="text" name="username" placeholder="Name" required>
 <input type="email" name="email" placeholder="Email" required>
 <textarea name="message" placeholder="Your Message" required></textarea>
 <button type="send">Send Message</button>
</form>


<!-- This is HTML Code End -->




<!-- The Final Stage of PHP Code Here -->

<?php
// Naming Constant
define( "RECIPIENT_NAME", "Sagor" );
define( "RECIPIENT_EMAIL", "alaminislam1274@gmail.com" );
// Values
$success = false;
$senderName = isset( $_POST['username'] ) ? preg_replace( "/[^\.\-\' a-zA-Z0-9]/", "", $_POST['username'] ) : "";
$senderEmail = isset( $_POST['email'] ) ? preg_replace( "/[^\.\-\_\@a-zA-Z0-9]/", "", $_POST['email'] ) : "";
$subject = isset( $_POST['subject'] ) ? preg_replace( "/[^\.\-\' a-zA-Z0-9]/", "", $_POST['subject'] ) : "";
$message = isset( $_POST['message'] ) ? preg_replace( "/(From:|To:|BCC:|CC:|Subject:|Content-Type:)/", "", $_POST['message'] ) : "";
// Send the email
if ( $senderName &amp;&amp; $senderEmail &amp;&amp; $message ) {
 $recipient = RECIPIENT_NAME . " &lt;" . RECIPIENT_EMAIL . "&gt;";
 $headers = "From: " . $senderName . " &lt;" . $senderEmail . "&gt;";
 $success = mail( $recipient, $subject, $message, $headers );
 //Set Location
 header('Location: index.html');
}
?>