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(PHP 4, PHP 5)

posix_getpwuidReturn info about a user by user id


array posix_getpwuid ( int $uid )

Returns an array of information about the user referenced by the given user ID.



The user identifier.


Returns an associative array with the following elements:

The user information array
Element Description
name The name element contains the username of the user. This is a short, usually less than 16 character "handle" of the user, not the real, full name.
passwd The passwd element contains the user's password in an encrypted format. Often, for example on a system employing "shadow" passwords, an asterisk is returned instead.
uid User ID, should be the same as the uid parameter used when calling the function, and hence redundant.
gid The group ID of the user. Use the function posix_getgrgid() to resolve the group name and a list of its members.
gecos GECOS is an obsolete term that refers to the finger information field on a Honeywell batch processing system. The field, however, lives on, and its contents have been formalized by POSIX. The field contains a comma separated list containing the user's full name, office phone, office number, and home phone number. On most systems, only the user's full name is available.
dir This element contains the absolute path to the home directory of the user.
shell The shell element contains the absolute path to the executable of the user's default shell.


Example #1 Example use of posix_getpwuid()





    [name]    => tom
    [passwd]  => x
    [uid]     => 10000
    [gid]     => 42
    [geocs]   => "tom,,,"
    [dir]     => "/home/tom"
    [shell]   => "/bin/bash"


  • posix_getpwnam() - Return info about a user by username
  • POSIX man page GETPWNAM(3)

  • posix_access
  • posix_ctermid
  • posix_errno
  • posix_getcwd
  • posix_getegid
  • posix_geteuid
  • posix_getgid
  • posix_getgrgid
  • posix_getgrnam
  • posix_getgroups
  • posix_getlogin
  • posix_getpgid
  • posix_getpgrp
  • posix_getpid
  • posix_getppid
  • posix_getpwnam
  • posix_getpwuid
  • posix_getrlimit
  • posix_getsid
  • posix_getuid
  • posix_get_last_error
  • posix_initgroups
  • posix_isatty
  • posix_kill
  • posix_mkfifo
  • posix_mknod
  • posix_setegid
  • posix_seteuid
  • posix_setgid
  • posix_setpgid
  • posix_setsid
  • posix_setuid
  • posix_strerror
  • posix_times
  • posix_ttyname
  • posix_uname
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