php模拟post提交

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$post_data = array();
//普通值  
$post_data['t'] = time();
$post_data['t1'] =123;
//传递json数组
$post_data_json['baseid'] = "1210";  
$post_data_json['email'] = "[e-mail]";  
$post_data_json['answer'] = "704xklV5";
$post_data_json['platform'] = "ps";
$post_data_json['ignoretf'] = "1";
$post_data_json['price'] = "";
$post_data_json['debug'] = "debug";
$post_data['data'] = json_encode($post_data_json);  
$url='http://xxx.xxx.xxx.xx/xx/xxx/top.php';  
//给每个参数加上&符号
$urlstring="";  
foreach ($post_data as $k=>$v)  
{  
    $urlstring.= "$k=".urlencode($v)."&";  
}  
$post_data=substr($urlstring,0,-1);  
$ch = curl_init();
//1不显示数据，0显示数据  
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POST, 1);  
curl_setopt($ch, CURLOPT_HEADER, 0);  
curl_setopt($ch, CURLOPT_URL,$url);  
//为了支持cookie  
curl_setopt($ch, CURLOPT_COOKIEJAR, 'cookie.txt');  
curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data);  
$result = curl_exec($ch);

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