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7.6

I am recieving this error message: Warning: Cannot modify header information - headers already sent by (output started at C:\Inetpub\wwwroot\www\strictly-invite\html\website\members.php:7) in C:\Inetp

Asked by rafique12 in PHP Scripting Language

I am implementing a guestbook on a web page and recieve the error message when I execute the script 
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<?php
session_start();  
// Connects to your Database 
mysql_connect("127.0.0.1", "root", "rafiqd") or die(mysql_error()); 
mysql_select_db("guestbook") or die(mysql_error())?>
 
<?php
if(isset($_POST['entries']))
{
   $name    = trim($_POST['name']);
   $email   = trim($_POST['email']);
   $comment = trim($_POST['comment']);
 
   if(!get_magic_quotes_gpc())
   {
      $comment = addslashes($comment);
   }
 
 
   // if the visitor do not enter the url
   // set $url to an empty string
   if ($url == 'http://')
   {
      $url = '';
   }
 
   $query = "INSERT INTO entries (name, 
                                    email, 
                                    comment, 
                                    date) 
             VALUES ('$name', 
                     '$email', 
                     '$comment', 
                     current_date)";
 
   mysql_query($query) or die('Error, query failed');
 
   header('Location: ' . $_SERVER['REQUEST_URI']);
   exit;
}
?>
 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Party hosting | Members only events | VIP Parties</title>
<link href="../../css/indexcss.css" rel="stylesheet" type="text/css" />
<script type="text/javascript" language="javascript">
function checkForm()
{
   // the variables below are assigned to each
   // form input 
   var gname, gemail, gmessage;
 
   with(window.document.guestform)
   {
      gname    = name;
      gemail   = email;
      gcomment = comment;
   }
 
   // if name is empty alert the visitor
   if(trim(gname.value) == '')
   {
      alert('Please enter your name');
      gname.focus();
      return false;
   }
   // alert the visitor if message is empty
   else if(trim(gcomment.value) == '')
   {
      alert('Please enter your comment');
      gcomment.focus();
      return false;
   }
   else
   {
      // when all input are correct 
      // return true so the form will submit 
      return true;
   }
}
 
/*
Strip whitespace from the beginning and end of a string
*/
function trim(str)
{
   return str.replace(/^\s+|\s+$/g,'');
}
 
/*
   Check if a string is in valid email format. 
*/
function isemail(str)
{
var regex = /^[-_.a-z0-9]+@(([-a-z0-9]+\.)+(ad|ae|aero|af|ag|
ai|al|am|an|ao|aq|ar|arpa|as|at|au|aw|az|ba|bb|bd|be|bf|bg|bh|
bi|biz|bj|bm|bn|bo|br|bs|bt|bv|bw|by|bz|ca|cc|cd|cf|cg|ch|ci|
ck|cl|cm|cn|co|com|coop|cr|cs|cu|cv|cx|cy|cz|de|dj|dk|dm|do|dz|
ec|edu|ee|eg|eh|er|es|et|eu|fi|fj|fk|fm|fo|fr|ga|gb|gd|ge|gf|gh|
gi|gl|gm|gn|gov|gp|gq|gr|gs|gt|gu|gw|gy|hk|hm|hn|hr|ht|hu|id|ie|
il|in|info|int|io|iq|ir|is|it|jm|jo|jp|ke|kg|kh|ki|km|kn|kp|kr|
kw|ky|kz|la|lb|lc|li|lk|lr|ls|lt|lu|lv|ly|ma|mc|md|mg|mh|mil|mk|
ml|mm|mn|mo|mp|mq|mr|ms|mt|mu|museum|mv|mw|mx|my|mz|na|name|nc|
ne|net|nf|ng|ni|nl|no|np|nr|nt|nu|nz|om|org|pa|pe|pf|pg|ph|pk|
pl|pm|pn|pr|pro|ps|pt|pw|py|qa|re|ro|ru|rw|sa|sb|sc|sd|se|sg|sh|
si|sj|sk|sl|sm|sn|so|sr|st|su|sv|sy|sz|tc|td|tf|tg|th|tj|tk|tm|
tn|to|tp|tr|tt|tv|tw|tz|ua|ug|uk|um|us|uy|uz|va|vc|ve|vg|vi|vn|
vu|wf|ws|ye|yt|yu|za|zm|zw)|(([0-9][0-9]?|[0-1][0-9][0-9]|[2]
[0-4][0-9]|[2][5][0-5])\.){3}([0-9][0-9]?|[0-1][0-9][0-9]|[2]
[0-4][0-9]|[2][5][0-5]))$/i;
return regex.test(str);
}
</script>
 
</head>
 
<body>
<div class="container">
<div class="body">
<div class="banner"></div>
 
<div class="advertisement"></div>
 
<div class="time">
<?php 
echo date('l, F dS Y.'); 
?>
</div>
<div class="linkbar"></div>
 
<div class="links"><form method="post" name="guestform">
<table width="268" border="0" cellpadding="2" cellspacing="1">
<tr> 
<td width="74">Name *</td> 
<td width="183"> 
<input name="name" type="text" size="30" maxlength="30"></td>
</tr>
<tr> 
<td width="74">Email</td>
<td> 
<input name="email" type="text" size="30" maxlength="50"></td>
</tr>
<tr> 
<tr> 
<td width="74">Comment *</td> 
<td> 
<textarea name="comment" cols="27" rows="5"></textarea></td>
</tr>
<tr> 
<td width="74">&nbsp;</td>
<td> 
<input name="entries" type="submit" value="Sign Guestbook" onClick="return checkForm();"></td>
</tr>
</table>
</form>
</div>
 
<div class="bodytext">
<?php
 
// prepare the query string
$query = "SELECT id, 
                 name, 
                 email, 
                 comment, 
                 DATE_FORMAT(entry_date, '%d.%m.%Y') ".
          "FROM entries ".
          "ORDER BY id DESC ";
 
$result = mysql_query($query) or die('Error, query failed');
 
// if the guestbook is empty show a message
if(mysql_num_rows($result) == 0)
{
?>
 
<p><br><br>Guestbook is empty </p>
 
<?php 
}
else
{
// get the entries
while($row = mysql_fetch_array($result))
{
// list() is a convenient way of assign a list of variables
// from an array values 
list($id, $name, $email, $comment, $date) = $row;
 
// change all HTML special characters,
// to prevent some nasty code injection
$name    = htmlspecialchars($name);
$comment = htmlspecialchars($comment); 
 
 
$comment = nl2br($comment);
?>
 
<table width="550" border="1" cellpadding="2" cellspacing="0">
<tr> 
<td width="80" align="left"> 
<a href="mailto:<?=$email;?>"> <?=$name;?> </a> </td>
<td align="right"><small><?=$date;?></small></td>
</tr>
<tr> 
<td colspan="2"> <?=$comment;?>
 
<?php
 
if($url != '')
{ 
// make the url clickable by formatting it as HTML link
$url = "<a href='$url' target='_blank'>$url</a>";
}
?>
 
<br> <small>Homepage : <?=$url;?></small> 
 
<?php
}
}
?>
</td>
</tr>
</table>
</div>
</div>
</div>
</body>
</html>
[+][-]01/13/09 05:35 AM, ID: 23362342Expert Comment

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[+][-]01/13/09 05:39 AM, ID: 23362373Author Comment

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[+][-]01/13/09 05:44 AM, ID: 23362420Expert Comment

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[+][-]01/13/09 05:45 AM, ID: 23362425Accepted Solution

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About this solution

Zone: PHP Scripting Language
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Solution Provided By: Phatzer
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Solution Grade: A
 
 
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