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Getting error on line 15 in code below which is

PHP Code:


  echo "<a href=""\"".$_SERVER['$PHP_SELF']."?cid=$cid\">$cname</a><br>"; 


http://realwebhost.net/category.php
and look at bottom


here is file

PHP Code:


<?php
$dbi= mysql_connect('localhost','usr','pass');
mysql_select_db('dbname');
$sql_get_faq_categories1_txt = "SELECT cid, cname
                                FROM
                                  faq_categories1
                                WHERE
                                  cid IN (1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24)
                                  ";
$sql_get_faq_categories1 = mysql_query($sql_get_faq_categories1_txt);
if (!$sql_get_faq_categories1)
  die ("Error displaying information. Please report this information to the administrator -- ".$sql_get_faq_categories1_txt . " - " . mysql_error());
while(list($cid,$cname)=mysql_fetch_row($sql_get_faq_categories1))
{
  echo "<a href=""\"".$_SERVER['$PHP_SELF']."?cid=$cid\">$cname</a><br>";
}// done topics so now display question if appropriateif((int)$_REQUEST['cid']>0)
{
  $cid = $_GET['cid']; // <<< --- ADDDED
  
  $sql_get_faq_questions1_txt = "SELECT fid, cid, question, answer, timestamp 
                                 FROM
                                   faq_questions1
                                 WHERE
                                   cid = $cid
                                   ";
  $sql_get_faq_questions1 = mysql_query($sql_get_faq_questions1_txt);

  if (!$sql_get_faq_questions1)
    die ("Error displaying information. Please report this information to the administrator -- ".$sql_get_faq_questions1_txt . " - " . mysql_error());
  echo "<table cellpadding=0 cellspacing=0 border=0 align=center width=100%>";

  while(list($fid,$cid,$question,$answer,$timestamp)=mysql_fetch_row($sql_get_faq_questions1))
  {
    echo "<link href='/base.css' rel='stylesheet' type='text/css' /><tr>
      <td valign=top>
        <table>
          <tr>
            <td>
              Q: $question
            </td>
          </tr>
        </table>
        <table cellpadding=0 cellspacing=0 border=0 align=center width=100%>
          <tr>
            <td valign=top>
              <table>
                <tr>
                  <td>
                    A:$answer
                  </td>
                </tr>
              </table>
            </td>
          </tr>";
  }
echo "</table>";
} // end questions
?>