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OpenAPI Specification

openapi: 3.2.0
info:
  title: PHP-FPM Status and Endpoints Ping API
  description: 'PHP-FPM (FastCGI Process Manager) does not expose a public HTTP API for

    runtime configuration, but it does expose two operational HTTP endpoints

    via the web server that proxies FastCGI requests to PHP-FPM. The status

    endpoint is enabled by setting `pm.status_path` and reports pool

    metrics in plain text, full text, HTML, JSON, XML, or OpenMetrics

    format depending on a query-string flag. The ping endpoint is enabled

    by setting `ping.path` and returns a configurable static response

    (default `pong`) suitable for upstream health checks.


    The actual paths are administrator-defined; the most common

    conventions (`/fpm-status` and `/fpm-ping`) are modeled here. Authentication

    and access control are handled by the fronting web server, not by

    PHP-FPM itself.

    '
  version: 1.0.0
  contact:
    name: PHP-FPM documentation
    url: https://www.php.net/manual/en/install.fpm.php
  license:
    name: PHP License
    url: https://www.php.net/license/
servers:
- url: http://{host}
  description: Web server fronting PHP-FPM.
  variables:
    host:
      default: localhost
      description: Hostname of the web server proxying FastCGI requests.
tags:
- name: Ping
  description: PHP-FPM liveness check.
paths:
  /fpm-ping:
    get:
      tags:
      - Ping
      summary: PHP-FPM liveness check
      description: 'Returns the configured `ping.response` value (default `pong`),

        confirming that the PHP-FPM master and worker pool are responsive.

        '
      operationId: getPing
      responses:
        '200':
          description: PHP-FPM ping response.
          content:
            text/plain:
              schema:
                type: string
                example: pong
externalDocs:
  description: PHP-FPM status page documentation
  url: https://www.php.net/manual/en/fpm.status.php