I am running squirrelmail 1.2 on two different SuSE Linux systems, one running SuSE 7.1 which has PHP 4.04 and one with SuSE 7.3 which has PHP 4.0.6. Note that these are the latest SuSE-patched versions that have fixes for some security issues backported into mod_php.
While the release notes for Squirrelmail 1.4 rc2a state that the PHP version should be 4.0.4 or above, it does not work well on either of these two systems. At first everything seems to be OK, but then I noticed a lot of "small bugs" that I tried to correct at first, but then I discovered the bigger picture: the variable $_SERVER is not loaded, so all references to elements of this array return empty strings.
Reading PHP documentation I saw that this variable only exists from version 4.1 of PHP and I started to replace it by $HTTP_SERVER_VARS in some places, but then I discovered that there already is an attempt to handle this by pointing $_SERVER to $HTTP_SERVER_VARS when the version of PHP is below 4.1. Apparently this does not work. At least not for SuSE 7.1 and 7.3. It seems to be ok for the other HTTP_xxx_VARS that are renamed to _xxx in this same piece of code, but not for _SERVER. Maybe because of the security fixes?
What might be going on here? Has anyone seen this problem?
Rob
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