This is a plugin for Google's Protocol Buffer Generator, protoc. It generates PHP code from a .proto file. by Andrew Brampton (bramp.net) (c) 2010,2016
Supports:
- Proto2 and Proto3
- All features (Messages, Enums, Oneof, Maps)
- Designed to be quick
- Passes all compliance tests
- PHP 5.5+ or HHVM 3.6.6+
Future:
- JSON encoding
- Support optimize_for=CODE_SIZE
Once compiled and installed you can use it via protoc like so:
protoc --php_out=. your.proto
This should generate the file "your.proto.php", which should be able to encode and decode protocol buffer messages. When using the generated PHP code you must include the "protocolbuffers.inc.php" file.
PHP uses signed integers, and depending on the platform may be 32 bit or 64 bit in size. Additionally PHP is typically compiled with IEEE 754 double precision floating point numbers, but may be compiled with single precision. This causes multiple problems for PHP using large numbers. As such the best appropimation is used when an exact representation is not available. On 32 bit platforms, signed integers are correct between -2^31 and 2^31-1, outside of that range floats are used. Double precision floats maintain integer accurancy up to 2^53, beyond that integers may not be precisce.
| Proto type | PHP type (32 bit) | PHP type (64 bit) | -------------------------------------------------------------------------------------- | bool | bool | bool | float / double | float | float | int32 | int | int | int64 / uint32 | int (between -2^31 and 2^31-1) otherwise float | int | uint64 | int (between 0 and 2^31-1) otherwise float | int (between 0 and 2^63-1) otherwise float | byte / string | string | string | enum | int | int
This has only been tested on Linux and Mac. You will need the following libraries:
# For Debian based Linux
sudo apt-get install libprotobuf-dev protobuf-compiler
# For Mac
brew install protobuf
To build:
./autogen.sh
./configure
make
sudo make install
Copyright (c) 2010-2013, Andrew Brampton All rights reserved.
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
- Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
- Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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