PHP如何获取Header信息

[kyle315]

我使用curl模拟Http Post请求，并在请求中加入了自定义的header，但我在服务端死活获取不到这个header（sign和Authorization）,使用的Apache服务器，各位大神看看问题出在哪里，代码如下：
client.php
<?php
header('Content-type: text/json;charset=utf-8');
$url="http://127.0.0.1/server1.php";
$post=true;

$body=array(
"mobile" => "13600000000",
"exp" => time()
);
$body_json = json_encode($body);

$header=array(
"sign" => "signature",
"Authorization" => "OH key:signature"
);

$ch = curl_init();
//参数设置
$res= curl_setopt ($ch, CURLOPT_URL,$url);

curl_setopt($ch, CURLOPT_TIMEOUT, 120);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HEADER, TRUE);
curl_setopt($ch, CURLOPT_NOBODY, TRUE);
curl_setopt($ch, CURLOPT_POST, TRUE);

if($post)
curl_setopt($ch, CURLOPT_POSTFIELDS, $body_json);

curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($ch,CURLOPT_HTTPHEADER,$header);

$result = curl_exec ($ch);
echo $result;
curl_close($ch);
?>

server.php
<?php
header('Content-type: text/json;charset=utf-8');

$body=file_get_contents("php://input");
echo "<br>body:".$body;

var_dump($_SERVER);
if( !function_exists('apache_request_headers') ) {
///
function apache_request_headers() {
$arh = array();
$rx_http = '/\AHTTP_/';
foreach($_SERVER as $key => $val) {
if( preg_match($rx_http, $key) ) {
$arh_key = preg_replace($rx_http, '', $key);
$rx_matches = array();
// do some nasty string manipulations to restore the original letter case
// this should work in most cases
$rx_matches = explode('_', $arh_key);
if( count($rx_matches) > 0 and strlen($arh_key) > 2 ) {
foreach($rx_matches as $ak_key => $ak_val) $rx_matches[$ak_key] = ucfirst($ak_val);
$arh_key = implode('-', $rx_matches);
}
$arh[$arh_key] = $val;
}
}
return( $arh );
}
///
}
var_dump(apache_request_headers(void)) ;

?>

[xuzuning]

是谁教你那么写 header 的？ $header=array( "sign" => "sign:signature", "Authorization" => "OH key:signature" ); $_SERVER 中才会有 [HTTP_SIGN] => signature [HTTP_OH_KEY] => signature 项 可见关联键是没有作用的

[kyle315]

@xuzuning 版主爱死你了，确实是这个问题改过之后就可以取到了，但是我写成 $header=array( "sign" => "sign:signature", "Authorization" => "Authorization:keysignature" ); 却娶不到Authorization的值，怎么破？

[xuzuning]

$header=array( "sign" => "sign:signature", "Authorization" => "Authorizatio:signature" ); 就有 [HTTP_SIGN] => signature [HTTP_AUTHORIZATIO] => signature 应该是键超长了吧

[xuzuning]

其实你那样写也是很不错的，结构清晰！ $header=array( "sign" => "signature", "Authorizatio" => "signature" ); 但不能忘了这句（格式化一下） foreach($header as $k=>&$v) $v = "$k:$v";

[傲雪星枫]

之前写了类似的，可以参考一下：http://blog.csdn.net/fdipzone/article/details/49518535 发送header:

<?php
$url = 'http://www.example.com';
$header = array('token:JxRaZezavm3HXM3d9pWnYiqqQC1SJbsU','language:zh','region:GZ');
$content = array(
        'name' => 'fdipzone'
);

$response = tocurl($url, $header, $content);
$data = json_decode($response, true);

echo 'POST data:';
echo '<pre>';
print_r($data['post']);
echo '</pre>';
echo 'Header data:';
echo '<pre>';
print_r($data['header']);
echo '</pre>';

/**
 * 发送数据
 * @param String $url     请求的地址
 * @param Array  $header  自定义的header数据
 * @param Array  $content POST的数据
 * @return String
 */
function tocurl($url, $header, $content){
    $ch = curl_init();
    if(substr($url,0,5)=='https'){
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); // 跳过证书检查
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, true);  // 从证书中检查SSL加密算法是否存在
    }
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
    curl_setopt($ch, CURLOPT_POST, true);
    curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($content));
    $response = curl_exec($ch);
    if($error=curl_error($ch)){
        die($error);
    }
    curl_close($ch);
    return $response;
}
?>

接收header

<?php
$post_data = $_POST;
$header = get_all_headers();

$ret = array();
$ret['post'] = $post_data;
$ret['header'] = $header;

header('content-type:application/json;charset=utf8');
echo json_encode($ret, JSON_UNESCAPED_UNICODE|JSON_PRETTY_PRINT);

/**
 * 获取自定义的header数据
 */
function get_all_headers(){

    // 忽略获取的header数据
    $ignore = array('host','accept','content-length','content-type');

    $headers = array();

    foreach($_SERVER as $key=>$value){
        if(substr($key, 0, 5)==='HTTP_'){
            $key = substr($key, 5);
            $key = str_replace('_', ' ', $key);
            $key = str_replace(' ', '-', $key);
            $key = strtolower($key);

            if(!in_array($key, $ignore)){
                $headers[$key] = $value;
            }
        }
    }

    return $headers;

}
?> 

输出：

POST data:
Array
(
    [name] => fdipzone
)
Header data:
Array
(
    [token] => JxRaZezavm3HXM3d9pWnYiqqQC1SJbsU
    [language] => zh
    [region] => GZ
)

[李睿_Lee]

引用 6 楼 kyle315 的回复:

上面的方法传递其它header值都没问题，但是传递 "Authorization" => "Authorization:keysignature"却无法获取到Authorization的值，是不是Authorization的header有特殊限制？看到一个方法可以取（http://blog.csdn.net/phphot/article/details/3491295），但还是取不到，高人们看下是什么原因。

文章中写得很明白了，Authorization这个确实比较特殊，具体的，其实你只要把$_SERVER变量整个打印出来看看，看Authorization这个键最终变成什么样的，就清楚是不是文章中写的那样了。

[kyle315]

上面的方法传递其它header值都没问题，但是传递 "Authorization" => "Authorization:keysignature"却无法获取到Authorization的值，是不是Authorization的header有特殊限制？看到一个方法可以取（http://blog.csdn.net/phphot/article/details/3491295），但还是取不到，高人们看下是什么原因。

[allen519]

这个 问题还没有看懂 以后回来再看