   #PHP Manual POSIX functions posix_ctermid posix_getcwd

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                             posix_get_last_error

   (PHP 4 >= 4.2.0)
   posix_get_last_error --  Retrieve the error number set by the last
   posix function that failed.

Description

   int posix_get_last_error ( void )

   Returns the errno (error number) set by the last posix function that
   failed. If no errors exist, 0 is returned. If you're wanting the
   system error message associated with the errno, use posix_strerror().

   See also posix_strerror().
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