#28956 [NEW]: http headers not posted inside an 'if' that reads a preset variable.

From: lps at cwru dot edu Operating system: Linux PHP version: 4.3.7 PHP Bug Type: HTTP related Bug description: http headers not posted inside an 'if' that reads a preset variable. Description: ------------ I've tested this buggy script on two substantially different setups: Redhat Linux 5.2 running Apache-1.3.31/PHP 4.3.3 Gentoo Linux V1.4 running Yaws-1.40/PHP 4.3.7 The http-header is posted ok if either: 1. You change the "echo" to "$foo =" and move the header("Cache..") to after the if-statement. 2. The condition in the if statement does not refer to a preset variable. Hope this helps, Leon Reproduce code: --------------- <?php header("Testing: 123"); if ($_SERVER["REQUEST_METHOD"] == "POST") { header("Cache-Control: no-store"); echo $_POST["foo"]; } ?> <html> <head> <title> Bug in PHP 4.3.3 and PHP 4.3.7 </title> </head> <body> <form action="test.php" method="post"> <textarea name="foo">When you submit this, you will not get a 'Cache-Control: no-store' header.</textarea> <input type="submit" /> </form> </body> </html> -- Edit bug report at http://bugs.php.net/?id=28956&edit=1 -- Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=28956&r=trysnapshot4 Try a CVS snapshot (php5): http://bugs.php.net/fix.php?id=28956&r=trysnapshot5 Fixed in CVS: http://bugs.php.net/fix.php?id=28956&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=28956&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=28956&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=28956&r=needscript Try newer version: http://bugs.php.net/fix.php?id=28956&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=28956&r=support Expected behavior: http://bugs.php.net/fix.php?id=28956&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=28956&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=28956&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=28956&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=28956&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=28956&r=dst IIS Stability: http://bugs.php.net/fix.php?id=28956&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=28956&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=28956&r=float