Question

返回的HTTP信头应该包括X-RateLimit-Limit 。

但是,我似乎无法用PHP取回这些。有人能告诉我我犯了什么愚蠢的错误吗?

我用正常的方式整理了卷发并且能够成功地得到和POST的要求。

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
curl_setopt($ch, CURLOPT_HTTPHEADER, array( Expect: ));
curl_setopt($ch, CURLOPT_TIMEOUT, 10);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
curl_setopt($ch, CURLOPT_HEADER, FALSE);
curl_setopt($ch, CURLINFO_HEADER_OUT, TRUE);
curl_setopt($ch, CURLOPT_VERBOSE, TRUE);

$response = curl_exec($ch);
$response_info=curl_getinfo($ch);
$erno = curl_errno($ch);
$er = curl_error($ch);
curl_close($ch);

我能得到一些回应信息,比如 http_code

$response_info[ http_code ]

但这条线刚刚返回无效

//Doesn t bloody work. No idea why!
$rate_limit = $response_info[ X-RateLimit-Limit ];

我正在运行PHP5.3.10版本。

<强 > EDIT

这是 print_r($response_info) 的结果 ;

Array
(
[url] => https://api.twitter.com/1/statuses/home_timeline.json...
[content_type] => application/json;charset=utf-8
[http_code] => 200
[header_size] => 695
[request_size] => 410
[filetime] => -1
[ssl_verify_result] => 0
[redirect_count] => 0
[total_time] => 1.239977
[namelookup_time] => 0.007361
[connect_time] => 0.155783
[pretransfer_time] => 0.465397
[size_upload] => 0
[size_download] => 99425
[speed_download] => 80182
[speed_upload] => 0
[download_content_length] => 99425
[upload_content_length] => 0
[starttransfer_time] => 0.794829
[redirect_time] => 0
[certinfo] => Array()
[redirect_url] => 
[request_header] => GET /1/statuses/home_timeline.json... HTTP/1.1
Host: api.twitter.com
Accept: */*
)

Answer 1

curl_getinfo 不返回响应信头, 只有关于请求的其他元信息。要获取信头, 请设置 CURLOPT_ HEADER 到 true 。这将包括输出中的信头。要将它们与响应机构区分开来, 需要 :

list($headers, $body) = explode("

", $response, 2);

为了分析信头,再次爆炸:

$headers = explode("
", $headers);
foreach ($headers as $header) {
    list($key, $value) = explode( : , $header, 2);
    $headers[trim($key)] = trim($value);
}

echo $headers[ X-RateLimit-Limit ];

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