PHP mail() function to send an email with PHP. The simplest way to do this is to send a text email. You can add contact form in your site it can send email using php mail function the following complete example to sent mail using php mail function.
a complete contact form example using html and php mail function.
<html>
<head>
<title>Send Mail</title>
</head>
<body>
<form method="post">;
Email: <input name="email" type="text" /><br />
Subject: <input name="subject" type="text" /><br />
Message:<textarea name="comment" rows="15" cols="40"></textarea><br />
<input type="submit" value="Submit" />
</form>
<?php
if (isset($_REQUEST['email']))
{
$my_email = "demo@example.com";
$email = $_REQUEST['email'];
$subject = $_REQUEST['subject'];
$comment = $_REQUEST['comment'];
mail($my_email, "$subject", $comment, "From:" . $email);
echo "Thank you for contacting us!";
}
?>
</body>
</html>