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 nsapi_request_headers    (PHP 4 >= 4.3.3, PHP 5) nsapi_request_headers -- Fetch all HTTP request headersDescriptionarray nsapi_request_headers  ( void ) 
     nsapi_request_headers() returns an associative
     array of all the HTTP headers in the current request.  This is only
     supported when PHP runs as a NSAPI
     module.
     
      | 例子 1. nsapi_request_headers() example | 
<?php$headers = nsapi_request_headers();
 
 foreach ($headers as $header => $value) {
 echo "$header: $value <br />\n";
 }
 ?>
 | 
 | 
 注: 
      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.
     
注: 
      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.
     
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