PHP, formmail.cgi, . , FormMail .
, PHP. .php( .htm .html) :
<div class="post">
<h2 class="title">Write to us</h2>
<?php
function validEmail($email)
{
$isValid = true;
$atIndex = strrpos($email, "@");
if (is_bool($atIndex) && !$atIndex)
{
$isValid = false;
}
else
{
$domain = substr($email, $atIndex+1);
$local = substr($email, 0, $atIndex);
$localLen = strlen($local);
$domainLen = strlen($domain);
if ($localLen < 1 || $localLen > 64)
{
// local part length exceeded
$isValid = false;
}
else if ($domainLen < 1 || $domainLen > 255)
{
// domain part length exceeded
$isValid = false;
}
else if ($local[0] == '.' || $local[$localLen-1] == '.')
{
// local part starts or ends with '.'
$isValid = false;
}
else if (preg_match('/\\.\\./', $local))
{
// local part has two consecutive dots
$isValid = false;
}
else if (!preg_match('/^[A-Za-z0-9\\-\\.]+$/', $domain))
{
// character not valid in domain part
$isValid = false;
}
else if (preg_match('/\\.\\./', $domain))
{
// domain part has two consecutive dots
$isValid = false;
}
else if(!preg_match('/^(\\\\.|[A-Za-z0-9!#%&`_=\\/$\'*+?^{}|~.-])+$/',
str_replace("\\\\","",$local)))
{
// character not valid in local part unless
// local part is quoted
if (!preg_match('/^"(\\\\"|[^"])+"$/',
str_replace("\\\\","",$local)))
{
$isValid = false;
}
}
if ($isValid && !(checkdnsrr($domain,"MX") || checkdnsrr($domain,"A")))
{
// domain not found in DNS
$isValid = false;
}
}
return $isValid;
}
if (isset($_REQUEST['email']))
{//if "email" is filled out, proceed
//check if the email address is invalid
$mailcheck = validEmail($_REQUEST['email']);
if ($mailcheck==FALSE)
{
echo "<p>Invalid e-mail address.</p>";
}
else {
//send email
$name = $_REQUEST['name'] ;
$email = $_REQUEST['email'] ;
$message = $_REQUEST['message'] ;
mail("recepient@example.com", "Subject: Message from contact form",
$message, 'From: "' . $name . '" <' . $email . '>' );
echo "<p>Thank you for writing to our website. Please allow up to 24 hours for a reply, if you have requested one.</p>";
}
}
else {
//if "email" is not filled out, display the form
echo "<form method='post' action='contact.php'>
Name: <input id='name' name='name' type='text' /><br />
E-mail: <input id='email' name='email' type='text' /> (required)<br />
Message for us:<br />
<textarea id='message' name='message' rows='15' cols='40'>
</textarea><br />
<input id='submit' type='submit' value='Send Message' />
</form>";
}
?>
</div>