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fileperms> <filemtime
[edit] Last updated: Sat, 12 May 2012

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(PHP 4, PHP 5)

fileownerGets file owner


int fileowner ( string $filename )

Gets the file owner.



Path to the file.

Return Values

Returns the user ID of the owner of the file, or FALSE on failure. The user ID is returned in numerical format, use posix_getpwuid() to resolve it to a username.


Example #1 Finding the owner of a file



Upon failure, an E_WARNING is emitted.


Note: The results of this function are cached. See clearstatcache() for more details.


As of PHP 5.0.0, this function can also be used with some URL wrappers. Refer to Supported Protocols and Wrappers to determine which wrappers support stat() family of functionality.

See Also

fileperms> <filemtime
[edit] Last updated: Sat, 12 May 2012
add a note add a note User Contributed Notes fileowner
dazoe 27-Jun-2010 07:21
Remember to use if(fileowner(...) === FALSE) instead of if(!fileowner()) or if(fileowner() == FLASE) because if the owner was "root" it would return 0.
joacorck at gmail dot com 26-Feb-2007 05:20
This function only works if the permissions are more less than 666
29-Jan-2006 04:58
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 :(

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