public function getColumns($table = NULL)
{
if ($table === NULL) {
throw new \Exception("Please input a table name. - glDbMysql.php - line 89");
}
if (!in_array($table, $this->getTables())) {
throw new \Exception("The table you're trying to query does not exist - glDbMysql.php - line 91");
}
$dbh = $this->getDbh();
$stmt = $dbh->prepare("DESCRIBE " . $table);
$success = $stmt->execute();
$columnNames = $stmt->fetchAll(\PDO::FETCH_ASSOC);
$iterator = new \RecursiveArrayIterator($columnNames);
$fields = array();
if ($success !== FALSE) {
while ($iterator->valid()) {
if ($iterator->hasChildren()) {
$childIterator = new \RecursiveArrayIterator($iterator->current());
while ($childIterator->valid()) {
if ($childIterator->key() == "Field") {
array_push($fields, $childIterator->current());
}
$childIterator->next();
}
}
$iterator->next();
}
return $fields;
}
$error = array('query' => "DESCRIBE " . $table, 'errorInfo' => $this->prepareErrorInfo($dbh->errorInfo()));
$errorInfo = json_encode($error);
throw new MysqlException($errorInfo);
}
function traverse(RecursiveArrayIterator $iterator)
{
while ($iterator->valid()) {
if ($iterator->hasChildren()) {
printf("HasChild: %s\n", $iterator->key());
traverse($iterator->getChildren());
} else {
printf("%s => %s\n", $iterator->key(), $iterator->current());
}
$iterator->next();
}
}
/**
* Walks through array
* @param $array
* @param $callback callable function($path, $value)
*/
public static function walkArray($array, $callback, $iterator = null, $prefix = '')
{
if (is_null($iterator)) {
$iterator = new \RecursiveArrayIterator($array);
}
while ($iterator->valid()) {
if ($iterator->hasChildren()) {
self::walkArray(null, $callback, $iterator->getChildren(), $prefix . '.' . $iterator->key());
} else {
call_user_func($callback, ltrim($prefix . '.' . $iterator->key(), '.'), $iterator->current());
}
$iterator->next();
}
}
/**
* @param \RecursiveArrayIterator $iterator
* @return mixed
* @throws \Symfony\Component\HttpKernel\Exception\HttpException
*/
protected function buildResources(\RecursiveArrayIterator $iterator)
{
if (count($this->mapping) == 0) {
throw new HttpException(Codes::HTTP_BAD_REQUEST, 'Unable to generate CMMI Data, no mapping is known');
}
$this->resource = new Resource(new Link($this->request->getUri(), 'self'));
if ($iterator->hasChildren()) {
while ($iterator->valid()) {
$childItem = $iterator->current();
$this->addResource(new \RecursiveArrayIterator($childItem));
$iterator->next();
}
} else {
$this->addResource($iterator);
}
return $this->resource;
}
/**
* Parse the upload data out of $_FILES.
*
* @access protected
* @return void
*/
protected function _parseData()
{
$data = array();
// Form uploading
if ($_FILES) {
// via CakePHP
if (isset($_FILES['data'])) {
foreach ($_FILES['data'] as $key => $file) {
$count = count($file);
// Add model index if it doesn't exist
$iterator = new RecursiveArrayIterator($file);
if ($iterator->hasChildren() === false) {
$file = array('Fake' => $file);
}
foreach ($file as $model => $fields) {
foreach ($fields as $field => $value) {
if ($count > 1) {
$data[$model . '.' . $field][$key] = $value;
} else {
$data[$field][$key] = $value;
}
}
}
}
// via normal form or AJAX iframe
} else {
$data = $_FILES;
}
// AJAX uploading
} else {
if (isset($_GET[$this->ajaxField])) {
$name = $_GET[$this->ajaxField];
$mime = self::mimeType($name);
if ($mime) {
$input = fopen("php://input", "r");
$temp = tmpfile();
$data[$this->ajaxField] = array('name' => $name, 'type' => $mime, 'stream' => true, 'tmp_name' => $temp, 'error' => 0, 'size' => stream_copy_to_stream($input, $temp));
fclose($input);
}
}
}
$this->_data = $data;
}
private function parseJson(\RecursiveArrayIterator $json, array $data, $level)
{
foreach ($json as $k => $j) {
if (!isset($this->path[$level])) {
return $data;
}
if ($k !== $this->path[$level] && $this->path[$level] !== '*') {
continue;
}
if ($k === end($this->path)) {
if (is_array($j)) {
$data = array_merge($data, $j);
} else {
$data[] = $j;
}
}
if ($json->hasChildren()) {
$data = $this->parseJson($json->getChildren(), $data, $level + 1);
}
}
return $data;
}
/**
* @param RecursiveArrayIterator $iterator
*/
public function fetchCategoriesWithProducts(RecursiveArrayIterator $iterator)
{
while ($iterator->valid()) {
if ($iterator->hasChildren()) {
$this->fetchCategoriesWithProducts($iterator->getChildren());
} else {
if ($iterator->key() == 'countProducts' && $iterator->current() != '0') {
$this->_categoryWithProducts[$iterator->offsetGet('id')] = array('name' => $iterator->offsetGet('name'), 'full_path' => $iterator->offsetGet('full_path'), 'countProduct' => $iterator->offsetGet('countProducts'));
}
/*$this->_categoryWithProducts[$iterator->offsetGet('id')] =
$iterator->offsetGet('countProducts');*/
}
$iterator->next();
}
}
public function hasChildren()
{
echo 'MyArrIter::hasChildren = ', var_export(parent::hasChildren()), "\n";
return parent::hasChildren();
}
function hasChildren()
{
echo __METHOD__ . "()\n";
self::fail(1, __METHOD__);
return parent::hasChildren();
}
function traverse_structure($ids)
{
$return_ids = array();
$iterator = new RecursiveArrayIterator($ids);
while ($iterator->valid()) {
if ($iterator->hasChildren()) {
$return_ids = array_merge($return_ids, $this->traverse_structure($iterator->getChildren()));
} else {
if ($iterator->key() == 'int') {
$return_ids = array_merge($return_ids, array($iterator->current()));
}
}
$iterator->next();
}
return $return_ids;
}
/**
* Walks through input array
*
* @param $array
* @param $callback callable function($path, $value)
* @param null $iterator
* @param string $prefix
*/
private function walkInputArray($array, $callback, $iterator = null, $prefix = '')
{
if (!$iterator) {
$iterator = new \RecursiveArrayIterator($array);
}
while ($iterator->valid()) {
$key = $iterator->key();
if ($iterator->hasChildren()) {
$this->walkInputArray(null, $callback, $iterator->getChildren(), $prefix . '.' . $key);
} else {
call_user_func($callback, ltrim($prefix . '.' . $key, '.'), $iterator->current());
}
$iterator->next();
}
}
<?php
error_reporting(E_ALL);
$it = new RecursiveArrayIterator(array('A', 'B', array('C', 'D'), array(array('E', 'F'), array('G', 'H', 'I'))));
// $it is a RecursiveIterator but also an Iterator,
// so it loops normally over the four elements
// of the array.
echo "Foreach over a RecursiveIterator: \n";
foreach ($it as $value) {
print_r($value);
// but RecursiveIterators specify additional
// methods to explore children nodes
$children = $it->hasChildren() ? '{Yes}' : '{No}';
echo $children, ' ';
}
echo "\n";
// we can bridge it to a different contract via
// a RecursiveIteratorIterator, whose cryptic name
// should be read as 'an Iterator that spans over
// a RecursiveIterator'.
echo "Foreach over a RecursiveIteratorIterator: \n";
foreach (new RecursiveIteratorIterator($it) as $value) {
echo $value;
}
echo "\n";
/**
* Helper to `names`, which recursively traverses the iterator appending
* new keys onto the base-so-far.
*
* @param \RecursiveArrayIterator $it
* @param string $base
* @param array $names
*/
private function reducer(\RecursiveArrayIterator $it, $base, &$names)
{
while ($it->valid()) {
$sub_base = sprintf('%s[%s]', $base, $it->key());
if ($it->hasChildren()) {
$this->reducer($it->getChildren(), $sub_base);
} else {
$names[] = $sub_base;
}
$it->next();
}
}
<?php
class Persona
{
public $nome = 'Mario';
public $cognome = 'Rossi';
public $telefono = array('cellulare' => '114499', 'ufficio' => '224433');
public $socials = array('twitter' => 'rossi', 'facebook' => 'http://www.facebook.com/rossi');
}
$iterator = new RecursiveArrayIterator(new Persona());
foreach ($iterator as $index => $value) {
if ($iterator->hasChildren()) {
foreach ($iterator->getChildren() as $key => $child) {
echo $key . ': ' . $child, PHP_EOL;
}
} else {
echo $index . ': ' . $value, PHP_EOL;
}
}
public function BuildFeed()
{
$xml = '<?xml version="1.0" encoding="UTF-8"?>
<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
<channel>
';
// build channel title
for ($iterator = $this->FeedTitle->getIterator(); $iterator->valid(); $iterator->next()) {
$xml .= '<' . $iterator->key() . '>' . $iterator->current() . '</' . $iterator->key() . '>' . "\n";
if ('title' == $iterator->key()) {
$xml .= $this->BuildFeedAtom();
}
}
// build channel items
$iterator = new RecursiveArrayIterator($this->FeedItems);
while ($iterator->hasChildren()) {
$xml .= '<item>' . "\n";
for ($sub_iterator = $iterator->current()->getIterator(); $sub_iterator->valid(); $sub_iterator->next()) {
if ('guid' == $sub_iterator->key()) {
$xml .= '<' . $sub_iterator->key() . ' isPermaLink ="' . ($sub_iterator->offsetGet('isPermaLink') ? 'true' : 'false') . '">' . $sub_iterator->current() . '</' . $sub_iterator->key() . '>' . "\n";
} elseif ('isPermaLink' != $sub_iterator->key()) {
$xml .= '<' . $sub_iterator->key() . '>' . $sub_iterator->current() . '</' . $sub_iterator->key() . '>' . "\n";
}
}
$xml .= '</item>' . "\n";
$iterator->next();
}
$xml .= '</channel>
</rss>';
return $xml;
}
protected static function encode_iterator(RecursiveArrayIterator $iterator, $options, $depth)
{
$json = array();
while ($iterator->valid()) {
$key = $iterator->key();
$value = $iterator->current();
if ($value instanceof JSExpression) {
var_dump($value);
$json[$key] = $value->json_encode($options);
} else {
if ($iterator->hasChildren()) {
if (!($depth > 0)) {
throw new Exception("Maximum depth reached");
}
$json[$key] = static::encode_iterator($iterator->getChildren(), $options, $depth - 1);
} else {
$json[$key] = static::encode_value($iterator->current(), $options);
}
}
$iterator->next();
}
var_dump($json);
if (self::is_numeric_array($json)) {
return '[' . implode(",", $json) . ']';
} else {
foreach (array_keys($json) as $key) {
$json[$key] = static::encode_key($key, $options) . ':' . $json[$key];
}
return '{' . implode(",", $json) . '}';
}
}
