php - 发出 POST 请求

Question

我想知道如何像那里描述的那样发出 HTTP POST 请求 http://code.google.com/apis/documents/docs/3.0/developers_guide_protocol.html#UploadingMetadata (创建一个空文档)。
我的代码如下所示:

<?php

$headers = array(
    "POST /feeds/default/private/full HTTP/1.1",
    "Host: docs.google.com",
    "GData-Version: 3.0",
    "Content-Length: 287",
    "Content-Type: application/atom+xml"
);

$data = "<?xml version='1.0' encoding='UTF-8'?>";
$data .= "<entry xmlns='http://www.w3.org/2005/Atom'>";
$data .= "<category scheme='http://schemas.google.com/g/2005#kind'";
$data .= "term='http://schemas.google.com/docs/2007#document'/>";
$data .= "<title>new document</title>";
$data .= "</entry>";

$ch = curl_init();

    curl_setopt($ch, CURLOPT_URL, "http://google.com/docs/feeds/default/private/full");
    curl_setopt($ch, CURLOPT_POST, true);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
    curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_HEADER, true);

$result = curl_exec($ch);

print_r($result);

?>

有什么问题吗？我做的请求正确吗？

Answer 1

$data = "<?xml version='1.0' encoding='UTF-8'?>";

用。。。来代替:

$data = "<"."?xml version='1.0' encoding='UTF-8'?".">";

和...

$data .= "term='http://schemas.google.com/docs/2007#document'/>";

和:

$data .= " term='http://schemas.google.com/docs/2007#document'/>";

哦，最后，你不应该是 print_r结果； print_r用于数组和对象，而不是字符串(curl_exec 返回字符串或 null/false)，而是使用 var_dump($result);