node.js - Getting ECONNREFUSED: for localhost while sending request from node(service) to php server

one text

  code: 'ECONNREFUSED',
  address: '127.0.0.1',
  port: 9999,

getting connection refused while sending request from one node server port 3000 to php server with port 9999

Tried changing localhost to 127.0.0.1 not worked

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