Bug #13967 Updated: unset() on a static variable causes it to forget it is static

ID: 13967 Updated by: jeroen Reported By: david@php.net Status: Open Old Bug Type: Scripting Engine problem Bug Type: Documentation problem Operating System: Debian Linux PHP Version: 4.0.6 New Comment: Like with global, static is a keyword linking a variable specially. unset() will completely destroy the variable with all links it might have. This is expected behaviour, or at least a known side-effect. With the current way of handling variables internally, this is not going to change. This isn't stressen enough in the manual, so changing to documentation problem. Previous Comments: ------------------------------------------------------------------------ [2001-11-06 21:49:10] david@php.net Doing unset() on a static variable causes it to forget the fact that it is static for the rest of the function. e.g. <? function abc() { static $a = 123; echo "On entry, a = $a\n"; unset($a); $a = 456; } abc(); abc(); ?> should give 123 then 456. It gives 123 and 123. Replacing unset($a) with $a = null, or removing the unset() entirely has the desired result of giving 123 then 456. ------------------------------------------------------------------------ Edit this bug report at http://bugs.php.net/?id=13967&edit=1