buongiorno ragazzi vi chiedo cortesemente aiuto , devo implementare una classe che ho trovato sul web per il datagrid , ma ho bisogno del vostro prezioso aiuto perfavore capisco che e una rogna ma mi serve grazie
Codice PHP:

class DataGrid
{
    var 
$gridcontents = array();
    var 
$limit;
    var 
$offset;
    var 
$sortby;
    var 
$sortdir;
    var 
$selfLink;

function 
gridstart($name$title,$selectquery$fields,$options/*,$selectquery, $countquery, $searchquery, $fields,$options*/)
{
  global 
$dbcore ,$settings ;
ob_start();
if (!empty(
$_REQUEST["limit"]) && is_numeric($_REQUEST["limit"])){
            
$limit $_REQUEST["limit"];
}else{
            
$limit $options["limit"];
}
if (!empty(
$_REQUEST["offset"]) && is_numeric($_REQUEST["offset"])){
            
$offset $_REQUEST["offset"];
}else{
            
$offset "0";
}
if (!empty(
$_REQUEST["sortby"])){
            
$this->sortby = isset($_REQUEST["sortby"])?$_REQUEST["sortby"]:'';
            
$this->sortdir iff(strtolower($_REQUEST["sortdir"])=="desc""DESC""ASC");
            
$updategrid true;
} else if (!empty(
$this->sortby)) {
            
$this->sortby $this->sortby;
            
$this->sortdir $this->sortdir;
}else{
            
$this->sortby =  isset($options["sortby"])?$options["sortby"]:'';
            
$this->sortdir = isset($options["sortdir"])?$options["sortdir"]:'';
}
$sortstatement iff($this->sortby" ORDER BY "$dbcore->escape($this->sortby) .iff(strtolower($this->sortdir)=="desc"" DESC"" ASC"));
 
for (
$xx=0$xx<count($fields); $xx++){    
$this->imgFilePath $settings['pathcms'].'templates/admin_default/images/img_template/';
$tdC_width   = isset($fields[$xx]['width']) ? 'width = "'.$fields[$xx]['width'].'"'      '';
$tdC_height  = isset($fields[$xx]['height'])? 'height = "'.$fields[$xx]['height'].'"'    '';
$tdC_align   = isset($fields[$xx]['align']) ? 'align = "'.$fields[$xx]['align'].'"'      '';
$tdC_valign  = isset($fields[$xx]['valign'])? 'valign = "'.$fields[$xx]['valign'].'"'    '';
$tdC_colspan = isset($fields[$xx]['colspan'])? 'colspan = "'.$fields[$xx]['colspan'].'"' '';
$fielddata .= '<td class="tabletitlerow" '.$tdC_width $tdC_height$tdC_align .$tdC_valign.'" nowrap>';
if(
$this->sortby == $fields[$xx]["name"])
{
$fielddata .= '&nbsp;<a href="index.php?_n='.$_GET['_n'].'&_s='.$_GET['_s'].'&rows='.$limit.'&offset='.$offset.'&sortby='.urlencode($fields[$xx]["name"]).'&sortdir='.iff(strtolower($this->sortdir)=="asc""desc""asc").'">'$fields[$xx]["name"].'&nbsp;<img src="'.$this->imgFilePath .iff(strtolower($this->sortdir)=="asc""asc""desc").'.gif" border="0" /></a>';
} else if (isset(
$fields[$xx]["type"]) and $fields[$xx]["type"] == "custom") {
$fielddata .= '&nbsp;'.$fields[$xx]["title"];
      
$norenderoptions true;
}else{
$fielddata .= '&nbsp;<a href="index.php?_n='.$_GET['_n'].'&_s='.$_GET['_s'].'&rows='.$limit.'&offset='.$offset.'&sortby='.urlencode($fields[$xx]["name"]).'&sortdir='.iff(strtolower($this->sortdir)=="asc""desc""asc").'">'$fields[$xx]["title"].'</a>';
}
$row  .= '<td colspan="'$tdC_colspan .'" width="'$tdC_width  .'" align="'$tdC_align  .'" valign="'$tdC_valign .'">['$fields[$xx]["name"] .'] </td>'.CMS_CRLF;
$fielddata .= '</td>';
}
$istabs false;
echo 
'<table cellpadding="0" cellspacing="0" border="0" width="100%" class="tborder" style="float: left; position: relative;">'.CMS_CRLF;
  if (!
$istabs){
echo 
'<thead>'.CMS_CRLF.'<tr>'.CMS_CRLF;
echo 
'<td class="tcat" width="1" align="left" nowrap>
<img src="'
.$settings['pathcms'].'templates/admin_default/images/img_template/space.gif" width="1" height="21" border = "0"></td>';
echo 
'<td class="tcat" width="100%" colspan="" align="left" nowrap>'$title .'</td>'.CMS_CRLF;
echo 
'</tr>'.CMS_CRLF.'</thead>'.CMS_CRLF;
        }
echo 
'<tbody><tr><td class="contenttableborder" colspan="2"><table border="0" cellpadding="3" cellspacing="1" width="100%">';
echo 
'<tr>';
echo 
$fielddata;
unset(
$fielddata);
echo 
'</tr>';
            
$count 0;
            
$sortjoin $sortstatement." LIMIT "$dbcore->escape($offset) .", "$dbcore->escape($limit) .";";
            eval(
"\$queryexec = \""$selectquery ."\";");
            
$result $dbcore->getlist($queryexec)or die(mysql_error());
            
        foreach(
$result  as $rowfields)    {
            
$count++;
            
$getBgcolor getBgcolor();
            if (!
$options["idname"]){
                      
$id $count;
            }else{
                      
$id $rowfields[$options["idname"]];
            }
            echo 
'<tr id="cms'$id .'" class="'$getBgcolor .'">'.CMS_CRLF;
            if (
$options['calluser']){
                      
$rowresult = @call_user_func($options["calluser"], array($rowfields$fields));
            } else {
                      
$rowresult $rowfields;
            }
            echo  @
preg_replace_callback("/\[(.*)\]/e""\$rowresult['\\1']"$row);
            echo 
'</tr>';
        }
        
printTableFotterContent();    
        
$this->gridcontents[$name] = ob_get_contents();
        
ob_end_clean();
}
function 
displaygrid($name)
{
        echo 
$this->gridcontents[$name];
}
}

function 
getBgcolor($bgcolor false)
{
        global 
$RCW ;
 
        if(
$bgcolor == "columright"
        {
         if(
$bgcolor == false)
         {
                 
$bgcolor "columleft";            
         }else{
                 
$bgcolor "columright";            
         }
          return 
"columright";
        }else{
         if(
$bgcolor == false)
         {
                 
$bgcolor "columright";            
         }else{
                 
$bgcolor "columleft";            
         }
          return 
"columleft";
        }

permetto che instanziando la classe e facendo un print_r mi stampa ma non estrae i risultati della query grazie