对我来说最好的解决方案

my_folder_delete("../path/folder");

代码:

function my_folder_delete($path) {
    if(!empty($path) && is_dir($path) ){
        $dir  = new RecursiveDirectoryIterator($path, RecursiveDirectoryIterator::SKIP_DOTS); //upper dirs are not included,otherwise DISASTER HAPPENS :)
        $files = new RecursiveIteratorIterator($dir, RecursiveIteratorIterator::CHILD_FIRST);
        foreach ($files as $f) {if (is_file($f)) {unlink($f);} else {$empty_dirs[] = $f;} } if (!empty($empty_dirs)) {foreach ($empty_dirs as $eachDir) {rmdir($eachDir);}} rmdir($path);
    }
}

注。记住!不要将空值传递给任何目录删除函数!!(总是备份它们，否则有一天你可能会遇到灾难!!)

您可以尝试如下:

/*
 * Remove the directory and its content (all files and subdirectories).
 * @param string $dir the directory name
 */
function rmrf($dir) {
    foreach (glob($dir) as $file) {
        if (is_dir($file)) { 
            rmrf("$file/*");
            rmdir($file);
        } else {
            unlink($file);
        }
    }
}

这里有一个完美的解决方案:

function unlink_r($from) {
    if (!file_exists($from)) {return false;}
    $dir = opendir($from);
    while (false !== ($file = readdir($dir))) {
        if ($file == '.' OR $file == '..') {continue;}

        if (is_dir($from . DIRECTORY_SEPARATOR . $file)) {
            unlink_r($from . DIRECTORY_SEPARATOR . $file);
        }
        else {
            unlink($from . DIRECTORY_SEPARATOR . $file);
        }
    }
    rmdir($from);
    closedir($dir);
    return true;
}

如果你不确定，给定的路径是目录或文件，那么你可以使用这个函数删除路径

function deletePath($path) {
        if(is_file($path)){
            unlink($path);
        } elseif(is_dir($path)){
            $path = (substr($path, -1) !== DIRECTORY_SEPARATOR) ? $path . DIRECTORY_SEPARATOR : $path;
            $files = glob($path . '*');
            foreach ($files as $file) {
                deleteDirPath($file);
            }
            rmdir($path);
        } else {
            return false;
        }
}

我更喜欢这个，因为它仍然在成功时返回TRUE，失败时返回FALSE，而且它还防止了一个错误，即一个空路径可能会尝试删除'/*'中的所有内容!!：

function deleteDir($path)
{
    return !empty($path) && is_file($path) ?
        @unlink($path) :
        (array_reduce(glob($path.'/*'), function ($r, $i) { return $r && deleteDir($i); }, TRUE)) && @rmdir($path);
}

类似Playnox的解决方案，但有优雅的内置DirectoryIterator:

function delete_directory($dirPath){
 if(is_dir($dirPath)){
  $objects=new DirectoryIterator($dirPath);
   foreach ($objects as $object){
    if(!$object->isDot()){
     if($object->isDir()){
      delete_directory($object->getPathname());
     }else{
      unlink($object->getPathname());
     }
    }
   }
   rmdir($dirPath);
  }else{
   throw new Exception(__FUNCTION__.'(dirPath): dirPath is not a directory!');
  }
 }