Bug #55850 [Opn->Ver]: header() / setcookie() / session_start() give bogus warning

Edit report at https://bugs.php.net/bug.php?id=55850&edit=1 ID: 55850 Updated by: cmb@php.net Reported by: tklingeberg at lastflood dot net Summary: header() / setcookie() / session_start() give bogus warning -Status: Open +Status: Verified Type: Bug Package: CGI/CLI related -Operating System: Linux +Operating System: * -PHP Version: 5.3.8 +PHP Version: 5.6.10 Block user comment: N Private report: N New Comment: Confirmed: <http://3v4l.org/CYsUm>. Previous Comments: ------------------------------------------------------------------------ [2011-10-04 23:38:05] tklingeberg at lastflood dot net Description: ------------ SAPIs that do not support HTTP header(s), give warnings that output has been already sent like "Warning: Cannot modify header information - headers already sent by..." even those APIs do *not* support headers. There is no use to warn about something that can never happen; There is nothing to modify; There are no headers that already have been sent. It might make more sense to warn that this function is useless w/o HTTP response headers being available. Compare with headers_sent(), it does differ between SAPIs. Would be nice to have this a bit more streamlined. Additionally header() could return FALSE if it failed like setcookie(). Test script: --------------- In CLI: <?php echo "output"; session_start(); setcookie("TestCookie", 'value'); header('X-TestHeader: value'); ?> ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=55850&edit=1