getallheaders()

(PHP 4, PHP 5, PHP 7)

获取全部 HTTP 请求头信息

说明

getallheaders(void): array

获取当前请求的所有请求头信息。

此函数是apache_request_headers()的别名。请阅读apache_request_headers()文档获得更多信息。

返回值

包含当前请求所有头信息的数组，失败返回FALSE。

更新日志

范例

getallheaders()示例

<?php
foreach (getallheaders() as $name => $value) {
    echo "$name: $value\n";
}
?>

参见

• apache_response_headers()获得全部 HTTP 响应头信息

it could be useful if you using nginx instead of apache
<?php
if (!function_exists('getallheaders')) 
{
  function getallheaders() 
  {
      $headers = [];
    foreach ($_SERVER as $name => $value) 
    {
      if (substr($name, 0, 5) == 'HTTP_') 
      {
        $headers[str_replace(' ', '-', ucwords(strtolower(str_replace('_', ' ', substr($name, 5)))))] = $value;
      }
    }
    return $headers;
  }
}
?>

There's a polyfill for this that can be downloaded or installed via composer:
https://github.com/ralouphie/getallheaders

Beware that RFC2616 (HTTP/1.1) defines header fields as case-insensitive entities. Therefore, array keys of getallheaders() should be converted first to lower- or uppercase and processed such.

dont forget to add the content_type and content_lenght if your are uploading file:
<?php
 function emu_getallheaders() {
    foreach ($_SERVER as $name => $value) 
    {
      if (substr($name, 0, 5) == 'HTTP_') 
      {
        $name = str_replace(' ', '-', ucwords(strtolower(str_replace('_', ' ', substr($name, 5)))));
        $headers[$name] = $value;
      } else if ($name == "CONTENT_TYPE") {
        $headers["Content-Type"] = $value;
      } else if ($name == "CONTENT_LENGTH") {
        $headers["Content-Length"] = $value;
      } 
    }
    return $headers;
  }
?>
chears magno c. heck

Due to the else part.
}else{ 
          $out[$key]=$value; 
All server Variables are added to the headers list, and that's not the desired outcome.

apache_request_headers replicement for nginx
<?php
if (!function_exists('apache_request_headers')) { 
    function apache_request_headers() { 
      foreach($_SERVER as $key=>$value) { 
        if (substr($key,0,5)=="HTTP_") { 
          $key=str_replace(" ","-",ucwords(strtolower(str_replace("_"," ",substr($key,5))))); 
          $out[$key]=$value; 
        }else{
          $out[$key]=$value; 
    }
      } 
      return $out; 
    } 
}
?>