CURL没有正确地从站点获取数据

我从站点www.example.com获取数据。数据是类似表格的结构，并且有一个分页。我正确地获取第一页数据，为了获取下一页数据，我在forloop中运行我的代码。我知道总共没有3页。我的代码如下：-

$url = "http://www.example.com/browseall";
$ch = curl_init();
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch,CURLOPT_URL,$url);
$output = curl_exec($ch);
$html = new simple_html_dom();
$html->load_file($url);
foreach($html->find('div.full_listing_pager') as $pages)
{
    $page = $pages->children(2)->plaintext;
}
curl_close($ch);
$limit = $page+1;
echo "limit--->".$limit;

echo "<table border=1>";
echo "<tr>";
echo "<th>Listing Id </th>";
echo "<th>Free Km Allowed</th>";
echo "<th>Free Days allowed</th>";
echo "<th>Driver requirements</th>";
echo "<th>Owner comments</th>";
echo "</tr>";

for($i=1;$i<$limit+1;$i++) //$limit =3(no of pages)
{
    $url=urlencode('http://www.example.com.au/browseall?browse_filter[from_city]=0&browse_filter[to_city]=0&browse_filter[car]=0&browse_filter[by_date]=0&page='.$i);
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_URL, $url);
    $output = curl_exec($ch);
    foreach($html->find('table.full_listings_table tbody tr.more_info_second') as $div)
    {
        $str = "<tr>";
        $data = $div->find('td p b',0)->plaintext;
        $str .="<td>".$data."</td>";
        $data = $div->find('td div b',0)->plaintext;
        $str .="<td>".$data."</td>";
        $data = $div->find('td br b',0)->plaintext;
        $str .="<td>".$data."</td>";
        $data = $div->find('td div',0)->plaintext;
        $dataLen = strlen($data);
        $temp = "Driver requirements:";
        $tempLen = strlen($temp);
        $pos = strpos($data,$temp,0);
        $sum = $pos + $tempLen;
        $finalData = substr($data,$sum,$dataLen-$sum);
        $str .="<td>".$finalData."</td>"; 
        $data = $div->find('td div',2)->plaintext;
        $data = str_replace("Owner comments:"," ",$data);
        $str .="<td>".$data."</td>"; 
        echo $str."</tr>";
    }
}
echo "</table>";
curl_close($ch);

问题是我获取第一页数据3次。我希望所有3页数据都在一个表中。我的代码有问题吗？请帮我，我是cURL的新手。