给看下那边有错

给看下那里有错，
//防止乱码
header("Content-type:text/html;charset=UTF-8");
$discuz_url = 'http://www.uuxoo.com/ ';//地址 
//$login_url = $discuz_url .'/violat/query/';//地址 
$url="http://www.uuxoo.com/violat/query/";

//$cookie_file = tempnam('./temp','cookie');

$ch = curl_init($url); 
//echo  $login_url;
curl_setopt($ch, CURLOPT_HEADER, 0); 
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
//curl_setopt($ch, CURLOPT_COOKIEJAR, $cookie_file); 
$contents = curl_exec($ch); 
curl_close($ch);
//获取表单FORMHASH 
preg_match('//i', $contents, $matches);
if(!empty($matches)) { 
$formhash = $matches[1]; 

} else { 
die('Not found the forumhash.'); 
} 
//?vehicle_reg_no=E1Y121&vehicle_id_no=153313&have_submit=yes&submit=1&vehicle_area=赣&vehicle_type=02

$post_data = array(); 
//车牌号
$post_data['vehicle_reg_no'] = 'E1Y121'; 
//车架号
$post_data['vehicle_id_no'] = '153313'; 
$post_data['have_submit'] = "yes"; 

$post_data['submit'] = '1'; 
//汽车地址
$post_data['vehicle_area'] = '赣'; 
//帖子的hash码，这个非常关键！假如缺少这个hash码，discuz会警告你来路的页面不正确
$post_data['formhash']=$formhash;
//汽车类型
$post_data['vehicle_type'] = '02'; 
$aaa= $formhash;
echo $aaa;
//$urlss="http://www.uuxoo.com/violat/query/?vehicle_reg_no=E1Y121&formhash=$aaa&vehicle_id_no=153313&have_submit=yes&submit=1&vehicle_area=赣&vehicle_type=02";
//echo $urlss;
$chs = curl_init($url);  

//curl_setopt($ch, CURLOPT_REFERER, $url); //伪装REFERER 
curl_setopt($chs, CURLOPT_HEADER, 0);
curl_setopt($chs, CURLOPT_RETURNTRANSFER, 1); 
//curl_setopt($ch, CURLOPT_COOKIEFILE, $cookie_file); 
//curl_setopt($ch, CURLOPT_COOKIEJAR, $cookie_file); 
curl_setopt($chs, CURLOPT_POST, 1); 
curl_setopt($chs, CURLOPT_POSTFIELDS, $post_data); 
echo  curl_exec($chs);  
//echo "$ch"; 
curl_close($chs); 
?>