如何在PHP中处理Protocol Buffers数据
我们知道Protocol Buffers是Google定义的一种跨语言、跨平台、可扩展的数据传输及存储的协议,因为将字段协议分别放在传输两端,传输数据中只包含数据本身,不需要包含字段说明,所以传输数据量小,解析效率高。感兴趣的可以访问 https://developers.google.com/protocol-buffers/docs/overview。Protocol Buffers官方只支持C++, Java, Python, C#, Go,如果想在PHP中使用Protocol Buffers,需要借助于第三方的扩展,使用方法如下。
安装protoc编译器
第一步,安装Google的protoc编译器,这个工具可以把proto文件中定义的Message转换为各种编程语言中的类。下载release版本直接编译安装。
tar -xvzf protobuf-2.5.0.tar.gzcd protobuf-2.5.0./configure --prefix=/usr/local/protobufmake && make install
下载地址
安装PHP Plugin
第二步,安装protoc的PHP plugin,需要使用composer安装,感兴趣的可以访问 http://www.phpcomposer.com
这个插件可以将proto文件转换到PHP文件,在PHP应用中引用后,可以将二进制格式的Protocol Buffers数据转换为PHP的对象
unzip protoc-gen-php-master.zipcd protoc-gen-php-mastercurl -sS https://getcomposer.org/installer | phpphp composer.phar install/usr/local/protobuf/bin/protoc --plugin=bin/protoc-gen-php --php_out=php_kingso -I. kingso.proto
下载地址
安装php-protocolbuffers
第三步,安装php-protocolbuffers,这是一个PHP扩展,在第二步中已经完成了proto文件到PHP文件的转换,但是对PHP对象的各种操作还需要这个扩展中的API方法
phpize./configuremake && make install
然后在你的php.ini配置文件中添加
extension = "protocolbuffers.so"
下载地址
编写代码
第四步,借助上面提到的扩展的各种API方法,可以简单地get出自己需要的字段完成后续工作
require "....../kingso.proto.php"$ks_result = KSResult::parseFromString($kingso_res);$ks_result->get('xxx_name');

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