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POSIX 함수 목록
POSIX
PHP Manual

# 예약 상수

이 확장은 다음의 상수들을 정의합니다. 이 확장을 PHP에 내장했거나, 실행시에 동적으로 읽어들일 경우에만 사용할 수 있습니다.

`POSIX_F_OK` (integer)
  Check whether the file exists.
`POSIX_R_OK` (integer)
  Check whether the file exists and has read permissions.
`POSIX_W_OK` (integer)
  Check whether the file exists and has write permissions.
`POSIX_X_OK` (integer)
  Check whether the file exists and has execute permissions.
`POSIX_S_IFBLK` (integer)
  Block special file
`POSIX_S_IFCHR` (integer)
  Character special file
`POSIX_S_IFIFO` (integer)
  FIFO (named pipe) special file
`POSIX_S_IFREG` (integer)
  Normal file
`POSIX_S_IFSOCK` (integer)
  Socket

> Note: These constants are available since PHP 5.1.0. Please also note that some of them may not be available in your system.

자원형
POSIX 함수 목록
POSIX
PHP Manual