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zhangbiao2009

opened on Apr 2, 2015

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Hello,
when use msgpack_pack() to pack an empty array, it is always treated as an array, but sometimes we want it to be treated as an empty map, just like what JSON_FORCE_OBJECT does for json_encode(). Does msgpack_pack() has options like this?

Thanks you.

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1. rybakit commented on Apr 10, 2015

   

   rybakit

   on Apr 10, 2015

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   I have a similar issue. While implementing a client for 3d party binary protocol which utilizes msgpack, I run into a problem that I need to send php indexed array as MP map, but msgpack_pack() serializes such arrays to MP array. So it would be nice to have a possibility to specify a type of the data to be serialized, e.g.:

   msgpack_pack([0 => 'foo', 1 => 'bar'], MessagePack::MAP);
   // or
   msgpack_pack_map([0 => 'foo', 1 => 'bar']);
2. zhangbiao2009 commented on Jul 27, 2015

   

   zhangbiao2009

   on Jul 27, 2015

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   Hello, will this feature be supported in future? thanks!
3. Sean-Der

   added

   enhancement

   on Jul 28, 2015
4. Sean-Der commented on Jul 28, 2015

   

   Sean-Der

   on Jul 28, 2015

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   Hi @zhangbiao2009 !

   Let me check the other msgpack implementations, this may be out of scope. I get this is really useful, but you can just walk the returned structure and transform as needed. I just don't want to add needless complexity.

   thanks for taking time to file this!
5. rybakit commented on Feb 24, 2016

   

   rybakit

   on Feb 24, 2016

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   For the record, in PDOStatement::bindValue() one can pass an optional 3d parameter with explicit data type, e.g.:

   $stmt->bindValue(':foo', $foo, PDO::PARAM_INT);
   

   So, for msgpack_pack() it may look like:

   msgpack_pack([1, 2]); // will pack it to MP_ARRAY
   msgpack_pack([1, 2], Msgpack::TYPE_MAP);
   msgpack_pack([1, 2], Msgpack::TYPE_ARR);
   
   msgpack_pack('42'); // will pack it to MP_STR
   msgpack_pack('42', Msgpack::TYPE_INT);
   
   msgpack_pack('2.4'); // will pack it to MP_STR
   msgpack_pack('2.4', Msgpack::TYPE_FLOAT);

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