(PHP 4 >= 4.3.0)
Returns an array of all Apache response headers. This functionality is only available in PHP version 4.3.0 and greater.
See also getallheaders() and headers_sent().
Note: From PHP 4.3.3 on you can use this function with the NSAPI server module in Netscape/iPlanet/SunONE webservers, too.
More information can be found at the InMotion Hosting Main Site
