AMFPHP issue referencing ByteArray

Recently I made some test in AMFPHP sending an retrieving ByteArray to be stored in a mysql blob field.

But suddenly I encounter a problem when I was trying to return an array of ByteArrays and I could not find out the reason flash continued to show me this error:

The php file which was generating this error was:

class Service
{
public function getArray( )
{
$GLOBALS['amfphp']['encoding'] = 'amf3';
$a = new ByteArray("\x00\x10this is a string");
$b = new ByteArray("\x00\x16this is another string");
$c = $a;
return array( $a, $b, $c );
}
}

While the Actionscript test class was:

package
{
import flash.display.Sprite;
import flash.net.NetConnection;
import flash.net.ObjectEncoding;
import flash.net.Responder;
import flash.utils.ByteArray;

public class test extends Sprite
{
private var nc: NetConnection;
private var rsp: Responder;

public function test()
{
rsp = new Responder( onResult, null );
nc = new NetConnection();
nc.objectEncoding = ObjectEncoding.AMF3;
nc.connect( "http://localhost/amfphp/trunk/gateway.php" );
nc.call( "test.bytearray.Service.getArray", rsp );
}

private function onResult( e: * ): void
{
if ( e is Array )
{
for each ( var b: ByteArray in( e as Array ) )
{
trace( 'reading bytearray...' );
b.position = 0;
trace( b.readUTF() );
}
}
}
}
}


After some investigation I found that the error was into the AMFSerializer.php file in the writeAmf3ByteArray method which doesn’t reference correctly the bytearray objects.

Thus I made a little modification and after that I succeeded to retrieve correctly the bytearray list ( with the 3rd element as reference of the first one ).

Here you can download the patch file, if you want to test the modification ( at your own risk 🙂 ). The patch has been created using the last svn version of amfphp and you can apply the patch with the following command:
patch -p0 -i bytearray.patch

New Flash player 9,0,45 & Flex patch

If you’re a Flex 2 developer you should download the newly released Flash player 9.0.r45 debug version.

Once installed the new player remember to apply also this patch to Flex builder 2, otherwise it will throw you an error every time debugging an app (expecially if you’re using Firefox).
This patch also does the following:

“This patch allows the Flex SDK and Flex Builder to use SWFs and SWCs created by Flash CS3 Professional. After applying the patch you should be able to take classes and symbols compiled with Flash CS3 Professional and compile them into a Flex application. You should also be able to take classes and libraries compiled with Flex and use them in a Flash CS3 Professional project.

In addition, this patch allows the Flex debugger (fdb) to function correctly with Flash Player 9 (9.0.45.0) in the Mozilla browser.”