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FlatBuffers is a serialization library for games and other memory constrained apps.
FlatBuffers allows you to directly access serialized data without unpacking/parsing it first, while still having great forwards/backwards compatibility.
FlatBuffers can be built for many different systems (Android, Windows, OS X, Linux)
For testing only
Composer
{
"repositories": [
{
"url": "https://github.com/arzzen/php-flatbuffers.git",
"type": "git"
}
],
"require": {
"arzzen/php-flatbuffers": "dev-master"
}
}
Test:
use FlatBuffers\Table;
use FlatBuffers\FlatBufferBuilder;
use FlatBuffers\ByteBuffer;
use FlatBuffers\Constants;
class StringWrapper extends Table implements Constants
{
private $fbb;
public function __construct(FlatBufferBuilder $flatBufferBuilder)
{
$this->fbb = $flatBufferBuilder;
}
public function init(ByteBuffer $byteBuffer)
{
$this->bb = $byteBuffer;
$this->bb_pos = $this->bb->getInt($this->bb->getPosition()) + $this->bb->getPosition();
return $this;
}
public function getString($slot = 0)
{
$vtable_offset = self::SIZEOF_INT + ($slot * 2);
$vtable = $this->bb_pos - $this->bb->getInt($this->bb_pos);
$offset = $vtable_offset < $this->bb->getShort($vtable) ? $this->bb->getShort($vtable + $vtable_offset) : 0;
$offset += $this->bb_pos + $this->bb->getInt($offset + $this->bb_pos);
$len = $this->bb->getInt($offset);
$startPos = $offset + self::SIZEOF_INT;
$_string = substr($this->bb->_buffer, $startPos, $len);
return ($offset != 0 ? $_string : null);
}
public function createString($value)
{
return $this->fbb->createString($value);
}
public function addString($slot, $str)
{
$this->fbb->addOffsetX($slot, $str, 0);
}
public function dataBuffer()
{
return $this->fbb->dataBuffer();
}
public function startObject($numfields)
{
$this->fbb->startObject($numfields);
}
public function endObject()
{
return $this->fbb->endObject();
}
public function finish($root_table, $identifier = NULL)
{
$this->fbb->finish($root_table, $identifier);
}
}
$flatBufferBuilder = new FlatBufferBuilder(1);
$stringWrapper = new StringWrapper($flatBufferBuilder);
// set string
$firstText = $stringWrapper->createString('first_value');
$secondText = $stringWrapper->createString('second_value');
$stringWrapper->startObject(25);
$stringWrapper->addString(2, $firstText);
$stringWrapper->addString(3, $secondText);
$stringWrapper->finish($stringWrapper->endObject());
// get string
$stringWrapper->init($stringWrapper->dataBuffer());
echo $stringWrapper->getString(2);
echo $stringWrapper->getString(3);
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