I have spent hours trying to follow all the great advice of coders here trying to fix this problem. I KNOW this is a duplicate of 50 other posts, but cannot find any code close enough to mine to fix it. I am new to PHP and have an old eCommerce cart on a site that cannot be updated. Please don't flame me for my ignorance. Can someone give me the exact instructions on how to fix this. Thanks in advance!

I just copied the code directly from the file. I did not add all the @.

The error:

mysql_fetch_array() expects parameter 1 to be resource, boolean given in /home/xxx /public_html/vsadmin/inc/mod/text.php on line 18

The code from test.php

 <?php
    $cat = @$_GET['cat']; // Current Category ID
    if(trim(@$_GET['cat'])!='') $theid = unstripslashes(@$_GET['cat']);
    if(@$explicitid!='' && is_numeric(@$explicitid))
    $theid=@$explicitid;
    elseif(@$usecategoryname && $theid!=''){
    $sSQL = 'SELECT sectionID FROM sections WHERE '.getlangid('sectionName',256)."='".escape_string($theid)."'";
    $result = mysql_query($sSQL) or print(mysql_error());
    if($rs=mysql_fetch_assoc($result)){ $catname=$theid; $theid=$rs['sectionID']; }
    mysql_free_result($result);
    }
    $cat = $theid;
    $queryrank="SELECT * from sections WHERE sectionID= '" . $cat . "' ";
    $resultrank=mysql_query($queryrank);
    ?>
    <?php
    while ($sSQL =mysql_fetch_array ($resultrank))//<< line 18
    {
    $text = $sSQL['cattext'];
    $html = $sSQL['cathtml'];
    $optiom = $sSQL['catoption'];
    if($sSQL['catoption']==1) {print "$text ";}
    else print "$html";
    }
 ?>

The only mysql_fetch_array I see in your code is

while ($sSQL =mysql_fetch_array ($resultrank) )

So, $resultrank=mysql_query($queryrank); must result in false.

Ergo, your query $queryrank="SELECT * from sections WHERE sectionID= '" . $cat . "' "; throws an error.

echo the mysql_error and you know what's wrong.

And, if you can, STOP using mysql-functions, they are depricated. Use mysqli or PDO instead.