form validation

<?php
extract($_POST);
if(isset($_POST[‘send’])){
if(preg_replace(“/^s*$/”,””,$firstname)==”” )
$errorList[]=”Select the department name is required.”;

if(preg_replace(“/^s*$/”,””,$email)==”” )
$errorList[]=”Email is required.”;
elseif(!eregi(“^[_a-z0-9-]+(.[_a-z0-9-]+)*@[a-z0-9-]+(.[a-z0-9-]+)*(.[a-z]{2,3})$”, $email))
$errorList[] = “Email address is invalid.”;

if(preg_replace(“/^s*$/”,””,$message)==”” )
$errorList[]=”Message is required.”;

?>
<form action=”#” method=”post”>
<table>
<?php if(count($errorList)>0){ ?>
<tr>
<td>&nbsp;</td><td><div style=”margin:5px; color:#FF0000;”><?php foreach($errorList as $value) echo $value.” ,”; ?></div></td></tr>
<?php } ?>
<?php if($success==5){ ?>
<tr>
<td>&nbsp;</td> <td><div style=”margin:10px; color: #006633; width:90%; clear:none; float:left; font-weight:bold”>Your message has been sent to site admin .</div></td>
</tr>
<?php } ?>

<tr>
<td>Please enter your <strong>name</strong>:</td> <td><input name=”firstname” type=”text” value=”<?php echo $firstname ?>” /></td>
</tr>

<tr>
<td>Please enter your <strong>email address </strong>:</td> <td><input name=”email” type=”text” value=”<?php echo $email ?>” /></td>
</tr>

<tr>
<td>Please enter message:</td> <td><textarea name=”message” style=”height:50px;”><?php echo nl2br($message); ?></textarea></td>
</tr>

<tr>
<td>&nbsp;</td> <td><input type=”submit” name=”send” value=” Send “></td>
</tr>

</table>

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