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<?php
namespace App\MessagePack;
use MessagePack\BufferUnpacker;
use MessagePack\Packer;
use MessagePack\TypeTransformer\Extension;
class ArrayIteratorTransformer implements Extension
{
private $type;
public function __construct($type)
$this->type = $type;
}
public function getType()
return $this->type;
public function pack(Packer $packer, $value)
if (!$value instanceof \ArrayIterator) {
return null;
$size = 0;
$data = '';
foreach ($value as $item) {
$data .= $packer->pack($item);
++$size;
if ($size <= 0xf) {
$data = \chr(0x90 | $size).$data;
} elseif ($size <= 0xffff) {
$data = "\xdc".\chr($size >> 8).\chr($size).$data;
} else {
$data = \pack('CN', 0xdd, $size).$data;
return $packer->packExt($this->type, $data);
public function unpack(BufferUnpacker $unpacker, $length)
$c = $unpacker->unpackUint8();
if ($c >= 0x90 && $c <= 0x9f) {
$size = $c & 0xf;
} elseif (0xdc === $c) {
$size = $unpacker->unpackUint16();
$size = $unpacker->unpackUint32();
while ($size--) {
yield $unpacker->unpack();
rybakit /
msgpack.php
