extract y close from xml

[jackvull]

I am trying to extract data from the Google finance API.
The following page gives the closing price for a stock on a certain date:

[google.com...]

How can I extract the Y_close element from the data?
I need to run this code once a day in a loop for 100 different stock symbols.

[coopster]

I would use simpleXML [php.net].
There are examples that show you how to open and read from an XML feed.