Captcha using TTF & GD

[Donn]

When I run captcha_debug.php, I get this message:


Headers already sent in ******/includes/extra_configures/pci_patch_v13x_search.php on line 15 Warning: Cannot modify header information - headers already sent by (output started at *****/includes/extra_configures/pci_patch_v13x_search.php:15) in **********/includes/classes/captcha.php on line 288

The below code from each of the two files returned in the error message is listed below. So far, I haven't figured anything out on my own with regard to this issue. Does anyone know anything about the patch, and why this might be happening? I don't see the identical commands, but then I'm only a PHP novice, and I'm not familiar with a lot.

Line 287- **********/includes/classes/captcha.php

 if($this->debug) {
      header('Content-Type: text/html');
    } else {
      @header('Content-Transfer-Encoding: binary');
      @header('Content-Disposition:attachment; filename=captcha_img.' . $this->img_type);
      @header('Content-Type: image/' . $this->img_type);
    }

Line 15 ****/includes/extra_configures/pci_patch_v13x_search.php

<?php
if (isset($_GET['keyword']) && $_GET['keyword'] != '')
{
  $count =  substr_count($_GET['keyword'], '"');
  if ($count == 1)
  {
    if(substr(stripslashes(trim($_GET['keyword'])), 0, 1) == '"')
    {
      $_GET['keyword'] .= '"';
    }
  }
  $_GET['keyword'] = stripslashes($_GET['keyword']);
}