基于HTML的远程表单POST&使用php curl获取远程服务器HTML响应？

我正在制作一个公开考试结果发布网站。我正在尝试的是，用户将他们的滚动信息提交到我的页面，我将把数据发布到原始服务器，并将原始服务器的响应带回我的站点

这是我的HTML表单输入的ID-

    id="sr" name="sr"
    id="et" name="et"
    id="exam" name="exam"
    id="year" name="year"
    id="board" name="board"
    id="roll" maxlength="6" name="roll"
    input id="button2" name="button2" type="submit" value="Submit"
    id="button" name="Reset" type="reset" value="Reset"

在提交表单上调用process.php

下面是process.php的代码，我试图基于某个类使用curl&php，但不起作用。我不喜欢卷发，所以对卷发不太了解

<?php
$post_data['sr'] = '';
$post_data['et'] = '';
$post_data['exam'] = '';
$post_data['year'] = '';
$post_data['board'] = '';
$post_data['roll'] = '';



foreach ( $post_data as $key => $value) 
{
    $post_items[] = $key . '=' . $value;
}
$post_string = implode ('&', $post_items);


$curl_connection = curl_init('http://remotehost/result.php');

curl_setopt($curl_connection, CURLOPT_CONNECTTIMEOUT, 30);
curl_setopt($curl_connection, CURLOPT_USERAGENT, "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)");
curl_setopt($curl_connection, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl_connection, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($curl_connection, CURLOPT_FOLLOWLOCATION, 1);

curl_setopt($curl_connection, CURLOPT_POSTFIELDS, $post_string);

$result = curl_exec($curl_connection);
//curl_close($curl_connection);
var_dump($result);

print_r(curl_getinfo($curl_connection));

?>

如何修复它