Workflow to publish phpdoc to github pages (open-telemetry#1418)

.github/workflows/phpdoc-to-github-pages

@@ -0,0 +1,35 @@
+name: "Generate API Documentation"
+
+on:
+  push:
+    branches:
+      - "main"
+  pull_request:
+  workflow_dispatch:
+
+# Sets permissions of the GITHUB_TOKEN to allow deployment to GitHub Pages
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+jobs:
+  documentation:
+    name: "Documentation"
+    runs-on: "ubuntu-latest"
+    steps:
+      - name: "Checkout"
+        uses: "actions/checkout@v4"
+      - name: "Build"
+        uses: "phpDocumentor/[email protected]"
+        with:
+          target: "docs/build"
+      - name: Setup Pages
+        uses: actions/configure-pages@v5
+      - name: Upload artifact
+        uses: actions/upload-pages-artifact@v3
+        with:
+          path: 'docs/build'
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v4