Description:
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Sirs, I was looking through the online documentation today, specifically: http://us2.php.net/manual/en/function.isset.php, when I clicked 'Variables' at the top of the left navigation menu. This proceeded to take me to an error page. I jumped around to the other variable functions pages, and they also produce the same error. I also discovered the link off the main documentation index to the variable functions "CXVIII. Variable Functions" section produces the same error.


Reproduce code:
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Go to http://us2.php.net/manual/en/function.isset.php, or any other variables page in your documentation, click 'variables' at the top of the documentation navigation menu.

Or

Go to the main (english) documentation index (http://us2.php.net/manual/en/index.php) and select "CXVIII. Variable Functions"

Expected result:
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I expected to see the main variable functions page. (ie http://us2.php.net/manual/en/ref.var.php)

Actual result:
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Configuration Error
The server encountered an error while processing your request.
Please contact the administrator of the referring document and inform them of the time the error occurred, and anything you might have done that may have caused the error.

The CGI environment at the time of this error was
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Administrators should refer to
User CGI Script Demo 
User CGI Script Verification 

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