headers_list Returns a list of response headers sent (or ready to send) &reftitle.description; arrayheaders_list headers_list will return a list of headers to be sent to the browser / client. To determine whether or not these headers have been sent yet, use headers_sent. &reftitle.returnvalues; Returns a numerically indexed array of headers. &reftitle.examples; ]]> &example.outputs; string(23) "X-Powered-By: PHP/5.1.3" [1]=> string(19) "Set-Cookie: foo=bar" [2]=> string(18) "X-Sample-Test: foo" [3]=> string(24) "Content-type: text/plain" } ]]> &reftitle.seealso; headers_sent header setcookie apache_response_headers