PHP recursive delete function - php

Question

I wrote recursive PHP function for folder deletion. I wonder, how do I modify this function to delete all files and folders in webhosting, excluding given array of files and folder names (for ex. cgi-bin, .htaccess)?
BTW
to use this function to totally remove a directory calling like this
recursive_remove_directory('path/to/directory/to/delete');
to use this function to empty a directory calling like this:
recursive_remove_directory('path/to/full_directory',TRUE);
Now the function is
function recursive_remove_directory($directory, $empty=FALSE)
{
// if the path has a slash at the end we remove it here
if(substr($directory,-1) == '/')
{
$directory = substr($directory,0,-1);
}
// if the path is not valid or is not a directory ...
if(!file_exists($directory) || !is_dir($directory))
{
// ... we return false and exit the function
return FALSE;
// ... if the path is not readable
}elseif(!is_readable($directory))
{
// ... we return false and exit the function
return FALSE;
// ... else if the path is readable
}else{
// we open the directory
$handle = opendir($directory);
// and scan through the items inside
while (FALSE !== ($item = readdir($handle)))
{
// if the filepointer is not the current directory
// or the parent directory
if($item != '.' && $item != '..')
{
// we build the new path to delete
$path = $directory.'/'.$item;
// if the new path is a directory
if(is_dir($path))
{
// we call this function with the new path
recursive_remove_directory($path);
// if the new path is a file
}else{
// we remove the file
unlink($path);
}
}
}
// close the directory
closedir($handle);
// if the option to empty is not set to true
if($empty == FALSE)
{
// try to delete the now empty directory
if(!rmdir($directory))
{
// return false if not possible
return FALSE;
}
}
// return success
return TRUE;
}
}

Answer 1

Try something like this:
$it = new RecursiveIteratorIterator(
new RecursiveDirectoryIterator('%yourBaseDir%'),
RecursiveIteratorIterator::CHILD_FIRST
);
$excludeDirsNames = array();
$excludeFileNames = array('.htaccess');
foreach($it as $entry) {
if ($entry->isDir()) {
if (!in_array($entry->getBasename(), $excludeDirsNames)) {
try {
rmdir($entry->getPathname());
}
catch (Exception $ex) {
// dir not empty
}
}
}
elseif (!in_array($entry->getFileName(), $excludeFileNames)) {
unlink($entry->getPathname());
}
}

Answer 2

I'm using this function to delete the folder with all files and subfolders:
function removedir($dir) {
if (substr($dir, strlen($dir) - 1, 1) != '/')
$dir .= '/';
if ($handle = opendir($dir)) {
while ($obj = readdir($handle)) {
if ($obj != '.' && $obj != '..') {
if (is_dir($dir . $obj)) {
if (!removedir($dir . $obj))
return false;
}
else if (is_file($dir . $obj)) {
if (!unlink($dir . $obj))
return false;
}
}
}
closedir($handle);
if (!#rmdir($dir))
return false;
return true;
}
return false;
}
$folder_to_delete = "folder"; // folder to be deleted
echo removedir($folder_to_delete) ? 'done' : 'not done';
Iirc I got this from php.net

Answer 3

You could provide an extra array parameter $exclusions to recursive_remove_directory(), but you'll have to pass this parameter every time recursively.
Make $exclusions global. This way it can be accessed in every level of recursion.