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fromemailsecure.php
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<html>
<body>
<?php
function spamcheck($field)
{
// Sanitize e-mail address
$field=filter_var($field, FILTER_SANITIZE_EMAIL);
// Validate e-mail address
if(filter_var($field, FILTER_VALIDATE_EMAIL))
{
return TRUE;
}
else
{
return FALSE;
}
}
?>
<h2>Feedback Form</h2>
<?php
// display form if user has not clicked submit
if (!isset($_POST["submit"]))
{
?>
<form method="post" action="<?php echo $_SERVER["PHP_SELF"];?>">
From: <input type="text" name="from"><br>
Subject: <input type="text" name="subject"><br>
Message: <textarea rows="10" cols="40" name="message"></textarea><br>
<input type="submit" name="submit" value="Submit Feedback">
</form>
<?php
}
else
// the user has submitted the form
{
// Check if the "from" input field is filled out
if (isset($_POST["from"]))
{
// Check if "from" email address is valid
$mailcheck = spamcheck($_POST["from"]);
if ($mailcheck==FALSE)
{
echo "Invalid input";
}
else
{
$from = $_POST["from"]; // sender
$subject = $_POST["subject"];
$message = $_POST["message"];
// message lines should not exceed 70 characters (PHP rule), so wrap it
$message = wordwrap($message, 70);
// send mail
mail("[email protected]",$subject,$message,"From: $from\n");
echo "Thank you for sending us feedback";
}
}
}
?>
</body>
</html>