Description:
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The links in the following text in the documentation for print_r() lead back to the same page:

"Return Values

If given a string, integer or float, the value itself will be printed. If given an array, values will be presented in a format that shows keys and elements. Similar notation is used for objects."

The url I observed this was http://sg.php.net/manual/en/function.print-r.php

Reproduce code:
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Visible at http://sg.php.net/manual/en/function.print-r.php

Expected result:
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I expected to be linked to the documentation for the type mentioned.

Actual result:
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Instead, I was linked back to the same page.