How to remove folder with PHP?

[coxteal]

I can create a image folder when I create a category, so that I can upload images there.Now I want to delete that folder when I delete the category.Code for creating a folder is the following and works well.\[code\]function create(){if ($this->input->post('name')){ $this->MCats->addCategory(); $folder = $this->input->post('name'); $folder = strtolower($folder); $folder = str_replace(" ", "_", $folder); $folder = 'images/'.$folder; $this->_create_path($folder);......}function _create_path($folder){ // create dir if not exists $folder = explode( "/" , $folder ); $mkfolder = ""; //sets the complete directory path for( $i=0 ; isset( $folder[$i] ) ; $i++ ) { $mkfolder .= $folder[$i] . '/'; if(!is_dir($mkfolder )) mkdir("$mkfolder"); }}\[/code\]And I come up with the following code. But I am not sure how to use rmdir so that it will not remove images folder. I want to remove only child of images folder.\[code\]function delete($id){$cat = $this->MCats->getCategory($id); // This will pull the name of category name.$catname = $cat['name'];$catname = strtolower($catname);$catname = str_replace(" ", "_", $catname);$catname = 'images/'.$catname; $this->_remove_path($catname);......}function _remove_path($folder){}\[/code\]I am not sure how to proceed after this.Can anyone give me some suggestions please?