From: public at asd-group dot com Operating system: Windows XP PHP version: 4.3.1 PHP Bug Type: HTTP related Bug description: Strange HTTP headers behaviour when using output buffering and callback
I'm using output buffering with a callback specified in ob_start. I'm also using the second parameter of value 2 (callback gets called each time output occurs in the application, rather than just once when the whole output buffer is flushed). My callback always returns an empty string, telling PHP to ignore the output, however as soon as this happens (ie. first 'echo' or 'print' statement in application) headers_sent starts to return true. However the HTTP headers (and terminating blank line) cant have been sent because my own calls to header() later on (eg. to set cookies) still work. Also, due to this, any code which expects output buffering to be on, and which checks headers_sent() before sending its own headers (after doing HTML output) will break using output buffering this way. -- Edit bug report at http://bugs.php.net/?id=22713&edit=1 -- Try a CVS snapshot: http://bugs.php.net/fix.php?id=22713&r=trysnapshot Fixed in CVS: http://bugs.php.net/fix.php?id=22713&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=22713&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=22713&r=needtrace Try newer version: http://bugs.php.net/fix.php?id=22713&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=22713&r=support Expected behavior: http://bugs.php.net/fix.php?id=22713&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=22713&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=22713&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=22713&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=22713&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=22713&r=dst IIS Stability: http://bugs.php.net/fix.php?id=22713&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=22713&r=gnused
