#40208 [NEW]: Cannot modify header information

From: jos_php at yahoo dot com Operating system: linux PHP version: 4.4.4 PHP Bug Type: *General Issues Bug description: Cannot modify header information Description: ------------ when I use header("Location: mailform.php"); function giving error "Cannot modify header information - headers already" Reproduce code: --------------- <body><?php if (($_REQUEST['FromId'])!="") { $FromId = $_REQUEST['FromId'] ; $ToId = $_REQUEST['ToId'] ; $subject = $_REQUEST['subject'] ; $message = $_REQUEST['message'] ; mail( $ToId, "Subject: $subject", $message, "From: $FromId" ); echo "Thank you for using our mail form"; } else { header("Location: mailform.php"); exit; }?> </body> Expected result: ---------------- It suppose to redirect to mailform.php Actual result: -------------- Warning: Cannot modify header information - headers already sent by (output started at /webcorp1/www/corpusers/a/c/acceptachildtoday.org/sendmail.php:7) in /webcorp1/www/corpusers/a/c/acceptachildtoday.org/sendmail.php on line 20 -- Edit bug report at http://bugs.php.net/?id=40208&edit=1 -- Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=40208&r=trysnapshot44 Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=40208&r=trysnapshot52 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=40208&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=40208&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=40208&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=40208&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=40208&r=needscript Try newer version: http://bugs.php.net/fix.php?id=40208&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=40208&r=support Expected behavior: http://bugs.php.net/fix.php?id=40208&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=40208&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=40208&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=40208&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=40208&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=40208&r=dst IIS Stability: http://bugs.php.net/fix.php?id=40208&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=40208&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=40208&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=40208&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=40208&r=mysqlcfg