reg exp question

[naelurec]

I am trying to extract data from a website .. However, I am having problems with the regex ..

I have the website read into a string and I have all of the HTML code stripped (strip_tags command..) -- So I end up with the following:

KnownFieldValuetoExtractNextField

I want to extract "ValuetoExtract" and I know "KnownField" and "NextField" but do not know where all of this is inside the file..

I tried a few different regex strings but haven't had any luck. Any ideas would be greatly appreciated.

[naelurec]

I figured it out ..

$string = "KnownFieldValuetoExtractNextField";
preg_match("/KnownField(.*)NextField/", $string, $matches);