查找在PHP(和/或SMARTY)中定义变量的位置?

我目前正在处理一个非常大的项目，并且承受着很快完成该项目的巨大压力，而且我遇到了严重的问题.编写最后定义的变量的程序员用一种非常奇怪的方式-config变量不是全部都在同一个文件中，它们分布在整个项目中，包含500多个文件和100k +行代码，而我拥有弄清楚某个变量在哪里很费时间，所以我可以解决问题.
有没有办法追踪这个变量?我相信他正在使用SMARTY(由于这样的问题，我无法忍受)，并且该变量是模板变量.我相当确定我要查找的变量最初定义为PHP变量，然后将该变量传递给SMARTY，因此我想跟踪PHP变量，但是，如果那不可能的话，我该如何跟踪在哪里为SMARTY定义变量?

P.S.我在Vista中，并且没有通过ssh访问服务器，因此'grep'成为不可能.

I'm currently working on a very large project, and am under a lot of pressure to finish it soon, and I'm having a serious problem. The programmer who wrote this last defined variables in a very odd way - the config variables aren't all in the same file, they're spread out across the entire project of over 500 files and 100k+ lines of code, and I'm having a hell of a time figuring out where a certain variable is, so I can fix an issue.
Is there a way to track this variable down? I believe he's using SMARTY (Which I can not stand, due to issues like this), and the variable is a template variable. I'm fairly sure that the variable I'm looking for was initially defined as a PHP variable, then that variable is passed into SMARTY, so I'd like to track down the PHP one, however if that's impossible - how can I track down where he defined the variable for SMARTY?

P.S. I'm in Vista, and don't have ssh access to the server, so 'grep' is out of the question.