php cURL没有收到数据

Question

I have a page a.php that uses cURL to post data to b.php page. However, when the page header to b.php, I didn't receive any POST data.

Here is my code:

$data=array();
$data['firstname']='A';
$data['lastname']='B';

$post_str='';
foreach($data as $key=>$value){
    $post_str.=$key.'='.urlencode($value).'&';  
}

$post_str=substr($post_str, 0, -1);//Remove last & from loop

$ch=curl_init();
curl_setopt($ch, CURLOPT_URL, 'http://localhost/b.php');
curl_setopt($ch, CURLOPT_POST, TRUE);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post_str);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);

$response=curl_exec($ch);

curl_close($ch);
header('location:b.php');

b.php page

echo $_POST['firstname'];

Answer 1

That's because this call:

header('location:b.php');

relocates to b.php without any $_POST data.