# nsapi_request_headers

(PHP 4 >= 4.3.3, PHP 5, PHP 7)

nsapi_request_headers — Fetch all HTTP request headers

### 说明

nsapi_request_headers ( void ) : array

nsapi_request_headers() gets all the HTTP headers in the current request. This is only supported when PHP runs as a NSAPI module.

> Note:

> Prior to PHP 4.3.3, getallheaders() was only available for the Apache servers. After PHP 4.3.3, getallheaders() is an alias for nsapi_request_headers() if you use the NSAPI module.

> Note:

> You can also get at the value of the common CGI variables by reading them from the $_SERVER superglobal, which works whether or not you are using PHP as a NSAPI module.

### 返回值

Returns an associative array with all the HTTP headers.

### 范例

Example #1 nsapi_request_headers() example

    <?php
    $headers = nsapi_request_headers();

    foreach ($headers as $header => $value) {
      echo "$header: $value <br />\n";
    }
    ?>