PHP递归删除函数

Question

我为文件夹删除编写了递归 PHP 函数。我想知道，如何修改此功能以删除虚拟主机中的所有文件和文件夹，不包括给定的文件和文件夹名称数组（例如 cgi-bin、.htaccess）？

顺便说一句

使用此功能完全删除这样调用的目录

recursive_remove_directory('path/to/directory/to/delete');

使用此函数清空目录调用如下：

recursive_remove_directory('path/to/full_directory',TRUE);

现在函数是

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

1. 您可以向recursive_remove_directory() 提供额外的数组参数$exclusions，但您必须每次递归地传递此参数。

2. 将$exclusions 设为全局。这样就可以在每个递归级别中访问它。

Answer 2

我正在使用此功能删除包含所有文件和子文件夹的文件夹：

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 我是从 php.net 得到的

Answer 3

试试这样的：

$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());
  }
}