Problem PHP poll

programming
1

Hi guys,
I was trying to create a php polling system which reads its variables from a txt file. However, I keep getting the following error:

Warning: Cannot modify header information - headers already sent by (output started at /home/mysite/public_html/vote.php:2) in /home/mysite/public_html/vote.php on line 31

Below’s my source code:


/////////////////test.html//////////////////////////
<div align="left" id="votediv">
  <p align="left">Which of the following game is your favourite?</p>
  <form method="post" action="vote.php">
  <table width="241" height="164" border="0" cellpadding="0" cellspacing="0">
    <tr>
      <td width="38" height="66"><p>
        <label></label>
      </p></td>
      <td width="203"><p>
        <label>
          <input name="vote" type="radio" value="0" checked="checked"/>
          DoTA 3v3</label>
      </p>
          <p>
            <label>
            <input name="vote" type="radio" value="1" />
              DoTA 4v4</label>
          </p>
        <p>
            <label>
            <input name="vote" type="radio" value="2" />
              Counter-Strike 1.5</label>
          </p>
        <p>
            <label>
            <input name="vote" type="radio" value="3" />
              Counter-Strike 1.6</label>
          </p>
        <p>
            <label>
            <input name="vote" type="radio" value="4" />
              Counter-Strike: Source</label>
        </p></td>
    </tr>
    <tr>
      <td height="64" colspan="2"><div align="right">
        <input name="submit" type="image" value="Vote" class="submitbtn" src="images/submit_03.gif"/>
      </div></td>
    </tr>
  </table>
  </form>
  <p align="left">&nbsp;</p>
</div>

//////////////////vote.php//////////////////////
<?php
$vote = $HTTP_POST_VARS['vote'];

//the filename
$filename = "txt/vote.txt";

//get content of textfile
$content = file($filename);

$array = explode("||", $content[0]);

$dota3 = $array[0];
$dota4 = $array[1];
$cs15 = $array[2];
$cs16 = $array[3];
$css = $array[4];

if($vote == 0)  $dota3 = $dota3 + 1;
if($vote == 1)  $dota4 = $dota4 + 1;
if($vote == 2)  $cs15 = $cs15 + 1;
if($vote == 3)  $cs16 = $cs16 + 1;
if($vote == 4)  $css = $css + 1;

$insertvote = $dota3."||".$dota4."||".$cs15."||".$cs16."||".$css;

$fp = fopen($filename,"w");
fputs($fp,$insertvote);
fclose($fp);

header("Location: stats.php");
?>

//////////////////stats.php////////////////////
<?php
//the filename
$filename = "txt/vote.txt";

//get content of textfile
$content = file($filename);

$array = explode("||", $content[0]);

$dota3 = $array[0];
$dota4 = $array[1];
$cs15 = $array[2];
$cs16 = $array[3];
$css = $array[4];
?>

I’ve also created a txt folder to store the text file. The ‘vote.txt’ file contains the following values:

0||0||0||0||0

Any help is greatly appreciated. Thanks in advance.