#21569 [Bgs]: PHP can't set cookies after a test with an unset variable

ID: 21569 Updated by: sniper@php.net Reported By: ElfQrin@ElfQrin.com Status: Bogus Bug Type: Unknown/Other Function Operating System: Windows 2000 only PHP Version: 4.3.0 New Comment: There's really no bug here. You're getting a notice about unitialized variable which causes the rest of the headers not to get send. Try adding 'error_reporting(0);' in the beginning of your script.. Previous Comments: ------------------------------------------------------------------------ [2003-01-13 10:48:18] ElfQrin@ElfQrin.com Workaround #2: At the beginning og your script, "declare" any possibly unset variable that will be invoked: if (!isset($test)) {$test="";} ------------------------------------------------------------------------ [2003-01-13 10:07:12] ElfQrin@ElfQrin.com Workaround (which doesn't mean this bug shouldn't be fixed): To perform tests: if (!isset($test) || $test=="") { echo ""; } To set a variable: $a=""; if (isset($test)) { $a=$test; } ------------------------------------------------------------------------ [2003-01-13 10:05:53] ElfQrin@ElfQrin.com I've found out that the problem is not limited to tests. It happens every time you invoke an unset variable before than setting a cookie. In the previous example, try $a = $test; instead of if ($test=="") { echo ""; } and the setcookie won't work as well. ------------------------------------------------------------------------ [2003-01-13 10:03:29] ElfQrin@ElfQrin.com This is a shortest example: <? # $test=""; setcookie("debug","1",0,"",""); if ($test=="") { echo ""; } setcookie("debug","3",0,"",""); echo "Cookie: [".$_COOKIE["debug"]."] (HIT RELOAD)<BR>"; ?> ------------------------------------------------------------------------ [2003-01-10 13:14:02] ElfQrin@ElfQrin.com I've submitted a specific bug. It depends either from PHP or Windows 2000 itself in some way, because I've tested it deeply in many configurations of operating systems, Apache and PHP versions. The sample code provided is a proof of concept, not a code I'm asking advice about. ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at http://bugs.php.net/21569 -- Edit this bug report at http://bugs.php.net/?id=21569&edit=1