PHP: fileowner - Manual (original) (raw)
(PHP 4, PHP 5, PHP 7, PHP 8)
fileowner — Gets file owner
Description
Parameters
filename
Path to the file.
Return Values
Returns the user ID of the owner of the file, or [false](reserved.constants.php#constant.false) on failure. The user ID is returned in numerical format, useposix_getpwuid() to resolve it to a username.
Errors/Exceptions
Upon failure, an [E_WARNING](errorfunc.constants.php#constant.e-warning) is emitted.
Examples
Example #1 Finding the owner of a file
<?php $filename = 'index.php'; print_r(posix_getpwuid(fileowner($filename))); ?>
Notes
Note: The results of this function are cached. See clearstatcache() for more details.
See Also
- filegroup() - Gets file group
- stat() - Gives information about a file
- posix_getpwuid() - Return info about a user by user id
Found A Problem?
15 years ago
Remember to use if(fileowner(...) === FALSE) instead of if(!fileowner()) or if(fileowner() == FLASE) because if the owner was "root" it would return 0.19 years ago
Small note: the function resolves symbolic links. That is, if the link is created by user 999 and maps to a file owned by user 666, this function returns 666 :(5 years ago
This function will always return 0 on Windows, because Windows does not support numeric user IDs.