Description:
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posix_isatty and posix_ttyname are documented as taking an int parameter, when more specifically they take a *resource*; namely STDOUT, STDERR, STDIN, etc. 

Methods such as fread and frwite which take similar resources document this as *resource* rather than int and I think its more correct to change the posix methods to being documented as *resource*

http://docs.php.net/manual/en/function.posix-isatty.php
http://docs.php.net/manual/en/function.posix-ttyname.php


http://us3.php.net/manual/en/function.fread.php

Expected result:
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resource

Actual result:
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int