(PHP 4 >= 4.2.0, PHP 5, PHP 7)
Retrieve the system error message associated with the given errno
string posix_strerror ( int $errno )
Returns the POSIX system error message associated with the given errno. You may get the errno parameter by calling posix_get_last_error().
Parameters:
errno
A POSIX error number, returned by posix_get_last_error(). If set to 0, then the