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| 1 | <?php |
| 2 | error_reporting(0); |
| 3 | |
| 4 | $ts = $_REQUEST['ts']; |
| 5 | |
| 6 | $ifModifiedSince = isset($_SERVER['HTTP_IF_MODIFIED_SINCE']) ? stripslashes($_SERVER['HTTP_IF_MODIFIED_SINCE']) : false; |
| 7 | if ($ifModifiedSince == $ts) { |
| 8 | header('HTTP/1.0 304 Not Modified'); |
| 9 | die; // stop processing |
| 10 | } |
| 11 | |
| 12 | header("Last-Modified: " . $ts); |
| 13 | |
| 14 | if ( $ifModifiedSince ) { |
| 15 | echo "OK: " . $ts; |
| 16 | } else { |
| 17 | echo "FAIL"; |
| 18 | } |
| 19 | |
| 20 | ?> |