How PHP implements SOA Architecture

For example, how does Java use Zookeeper + dubboPHP to implement the desired architecture? Service (Restful) uses internal Ng for balancing, an external ng is used to balance external APIs. For example, Java uses Zookeeper + dubbo.
How can PHP be implemented?
One architecture you want is Service (Restful) Balancing through internal Ng, while external ng balancing external API

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For example, Java uses Zookeeper + dubbo
How can PHP be implemented?
One architecture you want is Service (Restful) Balancing through internal Ng, while external ng balancing external API

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