Bug #12631: Fatal: ob_get_length() returns wrong value when compressed OB is on

From: troels@arvin.dk Operating system: Linux PHP version: 4.0.6 PHP Bug Type: Output Control Bug description: Fatal: ob_get_length() returns wrong value when compressed OB is on When output buffering is on, using the gzhandler, then ob_get_length() returns the uncompressed content length in stead of the actual (compressed) payload. This is fatal if a Content-Length HTTP-header is sent and the browser implements HTTP keep-alive. The result is a web-site which appears to be down or with extremely slow responses. Example PHP code: <?php ob_start('ob_gzhandler'); print "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"; // 30 a's print "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbb"; // 30 b's print "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"; // 30 a's header('Content-Length: '.ob_get_length()); ob_end_flush(); ?> If this is saved as http://localhost/ob.php then try the following wget command: wget --header="Accept-Encoding: gzip" --header="Connection: close" -S http://localhost/ob.php Notice that wget displays the following error message continuously: Connection closed at byte 36. Retrying. Also notice that the web-server told wget to expect 90 bytes (the uncompressed payload). -- Edit bug report at: http://bugs.php.net/?id=12631&edit=1