Automatically chmod all directories to (read write execute)

<?php
//path to directory to scan
$directory = "/";

//get all files in specified directory
$files = glob($directory . "*");

//print each file name
foreach($files as $file)
{
 //check to see if the file is a folder/directory
 if(is_dir($file))
 {
// 0777 read write execute for all user + owner
   chmod("$file",0777);
  echo $file."<br></br>";
 }
}

?>