$_POST var name char conversion "." to "_"

From: Date: Wed, 10 Dec 2003 16:19:01 +0000
Subject: $_POST var name char conversion "." to "_"
Groups: php.general 
Request: Send a blank email to php-general+get-172350@lists.php.net to get a copy of this message
Has anybody seen the seemingly automatic and unexplained conversion of the character "." to "_" in $_POST var names? I've tested several ways, with and without PHP, and I've dug around in the HTML specs and can't find a good explanation. Can anybody shed some light on this? Can this be overridden?

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