php的curl模拟post发送数据，部分丢失解决办法

$ch = curl_init();
curl_setopt($ch,CURLOPT_URL,"http://localhost/test2.php");
curl_setopt($ch,CURLOPT_HEADER,false);
curl_setopt($ch,CURLOPT_POST,true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POSTFIELDS,array("param"=>"c/c++","param2"=>"df&dfdf"));
$data = curl_exec($ch);
$code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);
$result = array("code"=>$code,"data"=>$data);
print_r($result);