Can you give me code to force telephone field?

astoller

Could you give me some code to add to my form below to force the telephone field entry by my visitor?
Your help would be appreciated.
Thanks
Art

<?

require_once('php/include.php');
require_once(CLASS_PATH.'g_product.php');

if (!is_numeric($_REQUEST['id'])) {
  echo 'The product ID is invalid.';
  exit;
}
$g_product = new g_product();
if (!$g_product->get_for_id($_REQUEST['id'])) {
  echo 'The product does not exist.';
  exit;
}
$product = $g_product->get_object();

?>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>:: RTO ::</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<style type="text/css">
<!--
body {
	margin-left: 0px;
	margin-top: 0px;
	margin-right: 0px;
	margin-bottom: 0px;
}
-->
</style>
<link href="css/rto.css" rel="stylesheet" type="text/css">
</head>

<body>
<form name="form1" method="post" action="http://www.fouraster.com/cgi-bin/formmail.pl">
<input type="hidden" name="recipient" value="d.nicholas@rto.com,info@websites-uk.com,steven@fouraster.com">
<input type="hidden" name="subject" value="Requested Quote for <?= $product->get_name() ?>">
<input type="hidden" name="redirect" value="http://www.rto.com/pop-up-thankyou.php">

<form name="form1" method="post" action="pop-up-thankyou.php">

<input type="hidden" name="code" value="<?= $product->get_code() ?>">
<input type="hidden" name="product" value="<?= $product->get_description() ?>">

<table width="360" border="0" align="center" cellpadding="0" cellspacing="0">
	<tr>
		<td width="110" height="44" bgcolor="#182C54"><img src="images/logo1.gif" width="110" height="44"></td>
	    <td width="250" bgcolor="#182C54">&nbsp;</td>
    </tr>
	<tr bgcolor="#FFFFFF">
		<td height="1" colspan="2"><img src="images/clr.gif" width="1" height="1"></td>
	</tr>
	<tr>
		<td height="11"><img src="images/trading-co.gif" width="110" height="11"></td>
		<td height="11" bgcolor="#0056A7"></td>
	</tr>
	<tr>
		<td height="11" colspan="2">
			<table width="360" border="0" cellspacing="0" cellpadding="0">
            	<tr>
            		<td>&nbsp;</td>
           		</tr>
            	<tr>
              <td align="center"><? if ($product->has_small_photo()) { ?><img src="<?= $product->get_small_photo_url() ?>" width="120" height="120"><? } ?></td>
           		</tr>
            	<tr>
            		<td align="center">&nbsp;</td>
           		</tr>
            	<tr>
            		<td align="center">
            			<table width="360" border="0" cellspacing="1" cellpadding="2">
                        	<tr>
                        		<td width="180" align="right" valign="top" class="bodytext">Name:</td>
                       		    <td width="180" valign="top" class="bluetext" align="left"><?= $product->get_name() ?></td>
                        	</tr>
                        	<tr>
                        		<td width="180" align="right" valign="top" class="bodytext">Description:</td>
                       		    <td width="180" valign="top" class="bluetext" align="left"><?= nl2br($product->get_description()) ?></td>
                        	</tr>
                        	<tr>
                        		<td align="right" valign="top" class="bodytext">Quantity required:</td>
                        		<td valign="top" class="bluetext" align="left">

                    				<input name="quantity" type="text" class="input">

                    		</td>
                   		</tr>
                    	<tr>
                    		<td align="right" valign="top" class="bodytext">Name:</td>
                    		<td valign="top" class="bluetext" align="left">
                    			<input name="name" type="text" class="input">
                    		</td>
                   		</tr>
                    	<tr>
                    		<td align="right" valign="top" class="bodytext">Company:</td>
                    		<td valign="top" class="bluetext" align="left">
                    			<input name="company" type="text" class="input">
                    		</td>
                   		</tr>
                    	<tr>
                    		<td align="right" valign="top" class="bodytext">Telephone:</td>
                    		<td valign="top" class="bluetext" align="left">
                    			<input name="telephone" type="text" class="input">
                    		</td>
                   		</tr>
                    	<tr>
                    		<td align="right" valign="top" class="bodytext">Email:</td>
                    		<td valign="top" class="bluetext" align="left">
                    			<input name="email" type="text" class="input">
                    		</td>

                    	</tr>
                    	<tr>
                    		<td align="left" valign="top" class="bodytext"><a href="#">Reset</a></td>
                    		<td align="right" valign="top" class="bluetext"><input type="submit" value="Send"><!--<a href="javascript: document.form1.submit()"><strong>send</strong></a>&nbsp;<img src="images/arrow1.gif" width="5" height="7">--></td>
                   		</tr>
                    	</table>

        		</td>
       		</tr>
        	<tr>
        		<td height="13" align="left" bgcolor="#1E335B" class="bottomlinks">Copyright (C) RTO tags 2005, All rights reserved</td>
       		</tr>
        	</table>
	</td>
</tr>
</table>
</form>
</body>
</html>

Kudose

if(isset($_POST['telephone']) && empty($_POST['telephone']))
  die('Telephone number was empty.');

astoller

Thanks for the code.
Will this die completely or will it recreate the original form so tha tuser is promted to try again?

Kudose

It will die displaying the error message in the single quotes.

astoller

So how could I make it regenrate the form for the user?

Sayian

if(!strlen($_POST['telephone'])) {
header("Location: /register.php?error=1");
exit();
}

if($_GET['error'] == 1) {
echo "Please enter your telephone number";
}