Check multiple levels of folders is dir - php

Question

When user types in a new folder name and the name all ready exists in sub folders and main folder then will return error.
Currently it returns error even if folder not exist in sub folders etc.
Question How can I make it so that it can check main directory and sub folders and return error if exits else lets me create it.
The post for foldername is $this->input->post('folder')
Checks if any subfolders exists with same name.
if (!$json) {
$results = scandir($DIR_IMAGE);
foreach ($results as $result) {
if ($result === '.' or $result === '..') continue;
if (is_dir($DIR_IMAGE . '/' . $result)) {
$json['error'] = 'This folder name all ready';
}
}
}
Full Function
public function folder() {
$json = array();
$DIR_IMAGE = FCPATH . 'images/';
if ($this->input->get('directory')) {
$directory = $this->input->get('directory') . '/';
} else {
$directory = 'catalog/';
}
if (!$json) {
$arrPathParts = explode('/', $directory);
if (count($arrPathParts) > 3) {
$json['error'] = 'You can not create a new folder here try back one level.';
}
}
if (!$json) {
$re = '/\W/'; // \W matches any non-word character (equal to [^a-zA-Z0-9_])
$str = $this->input->post('folder');
$is_correct_foldername = !preg_match($re, $str) ? true : false;
if (!$is_correct_foldername) {
$json['error'] = 'You have some symbols or no spaces that are not allowed';
}
}
// Checks if any subfolders exists with same name.
if (!$json) {
$results = scandir($DIR_IMAGE);
foreach ($results as $result) {
if ($result === '.' or $result === '..') continue;
if (is_dir($DIR_IMAGE . '/' . $result)) {
$json['error'] = 'This folder name all ready';
}
}
}
// Every thing passes now will create folder
if (!$json) {
mkdir($DIR_IMAGE . $directory . $this->input->post('folder'), 0777, true);
$json['success'] = 'Your folder is now created!';
}
$this->output->set_content_type('Content-Type: application/json');
$this->output->set_output(json_encode($json));
}

Answer 1

In your code:
if (!$json) {
$results = scandir($DIR_IMAGE);
foreach ($results as $result) {
if ($result === '.' or $result === '..') continue;
if (is_dir($DIR_IMAGE . '/' . $result)) {
$json['error'] = 'This folder name all ready';
}
}
}
You are only checking whethe each directory name returned from scandir() is a directory - which would always be true.
Assuming the name of the directory you want to check for is $this->input->post('foldername'), you can do:
if (!$json) {
$results = scandir($DIR_IMAGE);
foreach ($results as $result) {
if ($result === '.' or $result === '..') continue;
if (is_dir($DIR_IMAGE . '/' . $result) && ($result == $this->input->post('foldername'))) {
$json['error'] = 'This folder name all ready';
}
}
}
As a side note, you should try to use the DIRECTORY_SEPARATOR constant instead of '/' directory.
Finally, also be careful that directory name capitalisation could be a factor on different operating systems.

Answer 2

I have now got a solution using RecursiveIteratorIterator and in array
public function folder() {
$json = array();
$DIR_IMAGE = FCPATH . 'images/';
if ($this->input->get('directory')) {
$directory = $this->input->get('directory') . '/';
} else {
$directory = 'catalog/';
}
if (!$json) {
$arrPathParts = explode('/', $directory);
if (count($arrPathParts) > 3) {
$json['error'] = 'You can not create a new folder here try back one level.';
}
}
if (!$json) {
$re = '/\W/'; // \W matches any non-word character (equal to [^a-zA-Z0-9_])
$str = $this->input->post('folder');
$is_correct_foldername = !preg_match($re, $str) ? true : false;
if (!$is_correct_foldername) {
$json['error'] = 'You have some symbols or no spaces that are not allowed';
}
}
// Checks if any subfolders exists with same name. #todo clean paths
if (!$json) {
$root = $DIR_IMAGE . 'catalog/';
$iter = new RecursiveIteratorIterator(
new RecursiveDirectoryIterator($root, RecursiveDirectoryIterator::SKIP_DOTS),
RecursiveIteratorIterator::SELF_FIRST,
RecursiveIteratorIterator::CATCH_GET_CHILD // Ignore "Permission denied"
);
$paths = array($root);
foreach ($iter as $path => $dir) {
if ($dir->isDir()) {
$paths[] = basename($path);
}
}
if (in_array($this->input->post('folder'), $paths)) {
$json['error'] = 'You have all ready created a folder called ' . $this->input->post('folder') . ' in one of your directories!';
}
}
if (!$json) {
mkdir($DIR_IMAGE . $directory . $this->input->post('folder'), 0777, true);
$json['success'] = 'Your folder is now created!';
}
$this->output->set_content_type('Content-Type: application/json');
$this->output->set_output(json_encode($json));
}