Ikke gyldig email
I min mailformel vil jeg gerne havde det sådan, at hvis der ikke blev indtastet en gyldig mailadresse kunne man sende mailen.Hvordan indsætter jeg dette i min formel.
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>Kontakt os</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<link href="css/styles.css" rel="stylesheet" type="text/css">
<style type="text/css">
<!--
.style1 {
color: #666666;
font-weight: bold;
font-size: 12px;
}
.style3 {font-size: 24px}
-->
</style>
</head>
<body>
<table width="100%" border="0" class="layout">
<tr>
<td colspan="2" class="top style1"><div align="center"><br>
<span class="style3">Kontakt os</span> </div></td>
</tr>
<tr>
<td class="top1"> </td>
<td class="top1"><a href="index.php"><strong>FORSIDEN</strong></a></td>
</tr>
<tr>
<td class="left"> </td>
<td class="middle"><p> </p> <blockquote>
<form action="" method="post" name="kontakt_os" id="kontakt_os">
<table width="700" border="0" cellspacing="0" cellpadding="2">
<tr>
<td width="112"><strong>Fulde navn: </strong></td>
<td width="380"><input name="Navn" type="text" id="Navn" size="30"></td>
</tr>
<tr>
<td><strong>E-Mail Adresse: </strong></td>
<td><input name="adresse" type="text" id="adresse" size="30"></td>
</tr>
<tr>
<td><strong>Besked:</strong></td>
<td><textarea name="besked" cols="50" rows="15" id="besked"></textarea></td>
</tr>
<tr>
<td> </td>
<td><input name="send" type="submit" id="send" value="Send"> <input name="Reset" type="reset" id="Reset" value="Reset"></td>
</tr>
</table>
</form>
</blockquote> <p> </p> <p> </p></td>
</tr>
</table>
<?php
$bruger = "root";
$pass = "dreamweaver";
$db = "cms";
$host = "localhost";
$connection = mysql_connect("$host","$bruger","$pass");
mysql_select_db("$db", $connection);
if($_POST['send']){
$result = mysql_query("SELECT * FROM email LIMIT 0,1");
$row = mysql_fetch_array($result);
$din_mail = $row[email];
$subject = "Besked fra hjemmesiden";
$header = "From: ".$_POST['Navn']." <".$_POST['adresse'].">";
$besked = $_POST['besked'];
mail($din_mail, $subject, $_POST['besked'], $header);
echo "Din mail er nu sendt";
}
?>
</body>
</html>
