Array variable named sid v3.1.27

[billyrud]

Recently upgraded from 3.1.21 to 3.1.27 and noticed that if an array variable is named "sid" it doesn't output the value, upon downgrading to 3.1.21 or renaming "sid" to anything else it works again. I then tried version 3.1.23 and it failed, so a change between 3.1.21 and 3.1.23 is preventing this specific variable from working.

Test Info is below.

PHP Code:
array(0 => array("sid" => 38, "some" => "thing"));
array(0 => array("sid" => "38", "some" => "thing"));

Template Code:
{$test[0].sid} - outputs nothing
{$test[0].some} - outputs "thing"

[uwetews]

The problem is cause by the additional support of constants in Smarty ´templates.
session_start() does create an undocumented constant with name sid.
There is now a naming ambiguity if you write your array access like {$test[0].sid}
{$test[0]['sid']} will work.

See also https://code.google.com/p/smarty-php/issues/detail?id=225#c2