Script line counting

[devans]

The title says what I think I'm looking for.
What I have is a web site with various documents of software performance data. Each project I work on has a separate folder. When I create a new document, I do not have to upload because I'm directly connected to the web server . . .I simply place the doc in the corresponding folder.
Next step . . .just update the php script to link the document on the web page.

What I need: I would like to send an email automatically when a page is updated. The problem is that there is no database updating to use count().

Is there a script (that I could simply run nightly) to count (and subsequently update) the number of lines in a given piece of code?

For example: performancetest1.php currently has 50 lines of info and today I am adding a link which would increase that to 51 lines. Is there an automated script that will count that, and send an email to users of my site?
Thanks.
D

[Weedpacket]

count(file($filename)) could do that. If the files are likely to be 5000 lines rather than just 50 then fread() it in chunks and count the newlines. The number of lines in the file is that plus 1.