How to get the response headers

PHP
1

is there any way, i can get the response headers?

like: HTTP_IF_MODIFIED_SINCE?

I don’t have .htaccess files in my web root.

any help?

Thank you.

2

I found one post related to this:
http://www.php.net/manual/en/function.apache-request-headers.php#74592

But, that didn’t help…

3

These particular headers are not set in the example you posted, so logically PHP doesn’t know anything about them either, so their values are null.

4

sorry…i meant response headers.

I am trying to get these:
<?php
$_SERVER[‘HTTP_IF_MODIFIED_SINCE’];
$_SERVER[‘HTTP_IF_NONE_MATCH’];
?>

But those are null…any idea?
Example:
Server: Apache
Vary: Accept-Encoding
Pragma: No-cache
Cache-Control: no-cache,no-store,max-age=0
Expires: Thu, 01 Jan 1970 00:00:00 GMT
Content-Encoding: gzip
Content-Length: 10985
Content-Type: text/html
Date: Fri, 21 May 2010 00:07:31 GMT
Connection: keep-alive

5

What do you mean by “get the response headers” ?

6

The headers are not set!
If you don’t know how old I am and someone asks you how old I am, what do you answer? I don’t know.
That’s what PHP is telling you, since the headers are not set, it doesn’t know the values.

7

Try this:


  <?php
     echo '<pre>';
        print_r($_SERVER);
     echo '</pre>';
  ?>

.