(PHP 4, PHP 5, PHP 7, PHP 8)
fileowner — Gets file owner
fileowner(string $filename): int|false
Gets the file owner.
filenamePath to the file.
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.
Upon failure, an E_WARNING is emitted.
Example #1 Finding the owner of a file
<?php $filename = 'index.php'; print_r(posix_getpwuid(fileowner($filename))); ?>
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.
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https://www.php.net/manual/en/function.fileowner.php