php实例之改变文件的属主与属组

<?php
chown('/tmp/myfile.txt','sklar');   // specify user by name
chgrp('/home/sklar/schedule.txt','soccer'); // specify group by name

chown('/tmp/myfile.txt',5001);  // specify user by uid
chgrp('/home/sklar/schedule.txt',102);  // specify group by gid
?>

<?php
$dr = @opendir("/tmp/");
if(!$dr) {
  echo "Error, couldn't open /tmp/!";
  exit;
}

while(($filename = readdir($dr)) !== false) {
  chown($filename, "php");
  chgrp($filename, "phpgroup");
 }
closedir($dr);
?>