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DynamicCollection.php
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<?php
namespace Colibri\Base;
use ReturnTypeWillChange;
/**
* class DynamicCollection.
*
* Реализует интерфейс для доступа к элементам при обращении к классу как к массиву
* А также добавляет функции доступа к свойствам, реализованные в PropertyAccess
*/
abstract class DynamicCollection implements DynamicCollectionInterface
{
/**
* @var array
*/
protected $items = null;
/**
* @return void
*/
abstract protected function fillItems();
//// ArrayAccess implementation
/**
* @param mixed $offset
*
* @return bool
*/
public function offsetExists($offset): bool
{
if ($this->items === null) {
$this->fillItems();
}
return isset($this->items[$offset]);
}
/**
* @param mixed $offset
*
* @return mixed
*/
#[ReturnTypeWillChange]
public function offsetGet($offset)
{
if ($this->items === null) {
$this->fillItems();
}
return $this->items[$offset];
}
/**
* @param mixed $offset
* @param mixed $data
*
* @return mixed
*/
#[ReturnTypeWillChange]
public function offsetSet($offset, $data)
{
if ($this->items === null) {
$this->fillItems();
}
return $this->items[$offset] = $data;
}
/**
* @param mixed $offset
*/
public function offsetUnset($offset): void
{
if ($this->items === null) {
$this->fillItems();
}
unset($this->items[$offset]);
}
//// Iterator implementation
/**
* @return void
*/
public function rewind(): void
{
if ($this->items === null) {
$this->fillItems();
}
reset($this->items);
}
/**
* @return mixed
*/
#[ReturnTypeWillChange]
public function current()
{
if ($this->items === null) {
$this->fillItems();
}
return current($this->items);
}
/**
* @return mixed
*/
#[ReturnTypeWillChange]
public function key()
{
if ($this->items === null) {
$this->fillItems();
}
return key($this->items);
}
/**
* @return mixed
*/
#[ReturnTypeWillChange]
public function next()
{
if ($this->items === null) {
$this->fillItems();
}
return next($this->items);
}
/**
* @return bool
*/
public function valid(): bool
{
if ($this->items === null) {
$this->fillItems();
}
return $this->current() !== false;
}
//// Countable implementation
/**
* @return int
*/
public function count(): int
{
if ($this->items === null) {
$this->fillItems();
}
return count($this->items);
}
//// Additional methods
/**
* @return array
*/
public function toArray(): array
{
if ($this->items === null) {
$this->fillItems();
}
return array_values(get_object_vars($this));
}
/**
* @return array[]
*/
public function toDblArray(): array
{
if ($this->items === null) {
$this->fillItems();
}
$retArr = [];
$count = count($this->items);
for ($i = 0; $i < $count; $i++) {
$retArr[] = get_object_vars($this->items[$i]);
}
return $retArr;
}
/**
* @return string
*/
public function toJson()
{
return json_encode($this->toDblArray());
}
}