diff --git a/.github/workflows/build-unix.yml b/.github/workflows/build-unix.yml
index bf6df9ac4..5388aee2e 100644
--- a/.github/workflows/build-unix.yml
+++ b/.github/workflows/build-unix.yml
@@ -29,6 +29,9 @@ on:
         description: Extensions to build (comma separated)
         required: true
         type: string
+      shared-extensions:
+        description: Shared extensions to build (optional, comma separated)
+        type: string
       extra-libs:
         description: Extra libraries to build (optional, comma separated)
         type: string
@@ -42,6 +45,14 @@ on:
       build-fpm:
         description: Build fpm binary
         type: boolean
+      build-frankenphp:
+        description: Build frankenphp binary (requires ZTS)
+        type: boolean
+        default: false
+      enable-zts:
+        description: Enable ZTS
+        type: boolean
+        default: false
       prefer-pre-built:
         description: Prefer pre-built binaries (reduce build time)
         type: boolean
@@ -73,6 +84,9 @@ on:
         description: Extensions to build (comma separated)
         required: true
         type: string
+      shared-extensions:
+        description: Shared extensions to build (optional, comma separated)
+        type: string
       extra-libs:
         description: Extra libraries to build (optional, comma separated)
         type: string
@@ -86,6 +100,14 @@ on:
       build-fpm:
         description: Build fpm binary
         type: boolean
+      build-frankenphp:
+        description: Build frankenphp binary (requires ZTS)
+        type: boolean
+        default: false
+      enable-zts:
+        description: Enable ZTS
+        type: boolean
+        default: false
       prefer-pre-built:
         description: Prefer pre-built binaries (reduce build time)
         type: boolean
@@ -152,8 +174,23 @@ jobs:
               RUNS_ON="macos-15"
               ;;
           esac
-          DOWN_CMD="$DOWN_CMD --with-php=${{ inputs.php-version }} --for-extensions=${{ inputs.extensions }} --ignore-cache-sources=php-src"
-          BUILD_CMD="$BUILD_CMD ${{ inputs.extensions }}"
+          STATIC_EXTS="${{ inputs.extensions }}"
+          SHARED_EXTS="${{ inputs['shared-extensions'] }}"
+          BUILD_FRANKENPHP="${{ inputs['build-frankenphp'] }}"
+          ENABLE_ZTS="${{ inputs['enable-zts'] }}"
+          ALL_EXTS="$STATIC_EXTS"
+          if [ -n "$SHARED_EXTS" ]; then
+            ALL_EXTS="$ALL_EXTS,$SHARED_EXTS"
+          fi
+          if [ "$BUILD_FRANKENPHP" = "true" ] && [ "$ENABLE_ZTS" != "true" ]; then
+            echo "FrankenPHP build requires ZTS. Set enable-zts=true."
+            exit 1
+          fi
+          DOWN_CMD="$DOWN_CMD --with-php=${{ inputs.php-version }} --for-extensions=$ALL_EXTS --ignore-cache-sources=php-src"
+          BUILD_CMD="$BUILD_CMD $STATIC_EXTS"
+          if [ -n "$SHARED_EXTS" ]; then
+            BUILD_CMD="$BUILD_CMD --build-shared=$SHARED_EXTS"
+          fi
           if [ -n "${{ inputs.extra-libs }}" ]; then
             DOWN_CMD="$DOWN_CMD --for-libs=${{ inputs.extra-libs }}"
             BUILD_CMD="$BUILD_CMD --with-libs=${{ inputs.extra-libs }}"
@@ -177,6 +214,12 @@ jobs:
           if [ ${{ inputs.build-fpm }} == true ]; then
               BUILD_CMD="$BUILD_CMD --build-fpm"
           fi
+          if [ "$BUILD_FRANKENPHP" = "true" ]; then
+              BUILD_CMD="$BUILD_CMD --build-frankenphp"
+          fi
+          if [ "$ENABLE_ZTS" = "true" ]; then
+              BUILD_CMD="$BUILD_CMD --enable-zts"
+          fi
           echo 'download='"$DOWN_CMD" >> "$GITHUB_OUTPUT"
           echo 'build='"$BUILD_CMD" >> "$GITHUB_OUTPUT"
           echo 'run='"$RUNS_ON" >> "$GITHUB_OUTPUT"
@@ -199,6 +242,27 @@ jobs:
         env:
           phpts: nts
 
+      - if: ${{ inputs['build-frankenphp'] == true }}
+        name: "Install go-xcaddy for FrankenPHP"
+        run: |
+          case "${{ inputs.os }}" in
+            linux-x86_64|linux-aarch64)
+              ./bin/spc-alpine-docker install-pkg go-xcaddy
+              ;;
+            linux-x86_64-glibc|linux-aarch64-glibc)
+              ./bin/spc-gnu-docker install-pkg go-xcaddy
+              ;;
+            macos-x86_64|macos-aarch64)
+              composer update --no-dev --classmap-authoritative
+              ./bin/spc doctor --auto-fix
+              ./bin/spc install-pkg go-xcaddy
+              ;;
+            *)
+              echo "Unsupported OS for go-xcaddy install: ${{ inputs.os }}"
+              exit 1
+              ;;
+          esac
+
       # Cache downloaded source
       - id: cache-download
         uses: actions/cache@v4
@@ -245,7 +309,23 @@ jobs:
           name: php-fpm-${{ inputs.php-version }}-${{ inputs.os }}
           path: buildroot/bin/php-fpm
 
+      # Upload frankenphp executable
+      - if: ${{ inputs['build-frankenphp'] == true }}
+        name: "Upload FrankenPHP SAPI"
+        uses: actions/upload-artifact@v4
+        with:
+          name: php-frankenphp-${{ inputs.php-version }}-${{ inputs.os }}
+          path: buildroot/bin/frankenphp
+
       # Upload extensions metadata
+      - if: ${{ inputs['shared-extensions'] != '' }}
+        name: "Upload shared extensions"
+        uses: actions/upload-artifact@v4
+        with:
+          name: php-shared-ext-${{ inputs.php-version }}-${{ inputs.os }}
+          path: |
+            buildroot/modules/*.so
+            buildroot/modules/*.dylib
       - uses: actions/upload-artifact@v4
         name: "Upload License Files"
         with:
diff --git a/docs/en/guide/action-build.md b/docs/en/guide/action-build.md
index 7d4bba327..b22549569 100644
--- a/docs/en/guide/action-build.md
+++ b/docs/en/guide/action-build.md
@@ -16,8 +16,10 @@ while also defining the extensions to compile.
 
 1. Fork project.
 2. Go to the Actions of the project and select `CI`.
-3. Select `Run workflow`, fill in the PHP version you want to compile, the target type, and the list of extensions. (extensions comma separated, e.g. `bcmath,curl,mbstring`)
-4. After waiting for about a period of time, enter the corresponding task and get `Artifacts`.
+3. Select `Run workflow`, fill in the PHP version you want to compile, the target type, and the list of static extensions. (comma separated, e.g. `bcmath,curl,mbstring`)
+4. If you need shared extensions (for example `xdebug`), set `shared-extensions` (comma separated, e.g. `xdebug`).
+5. If you need FrankenPHP, enable `build-frankenphp` and also enable `enable-zts`.
+6. After waiting for about a period of time, enter the corresponding task and get `Artifacts`.
 
 If you enable `debug`, all logs will be output at build time, including compiled logs, for troubleshooting.
 
diff --git a/src/SPC/builder/Extension.php b/src/SPC/builder/Extension.php
index 9077269e5..4eee077c4 100644
--- a/src/SPC/builder/Extension.php
+++ b/src/SPC/builder/Extension.php
@@ -456,7 +456,7 @@ public function buildUnixShared(): void
         // process *.so file
         $soFile = BUILD_MODULES_PATH . '/' . $this->getName() . '.so';
         $soDest = $soFile;
-        preg_match('/-release\s+(\S*)/', getenv('SPC_CMD_VAR_PHP_MAKE_EXTRA_LDFLAGS'), $matches);
+        preg_match('/-release\s+(\S*)/', getenv('SPC_CMD_VAR_PHP_MAKE_EXTRA_LDFLAGS') ?: '', $matches);
         if (!empty($matches[1])) {
             $soDest = str_replace('.so', '-' . $matches[1] . '.so', $soFile);
         }
@@ -551,7 +551,7 @@ protected function getSharedExtensionEnv(): array
             'CFLAGS' => $config['cflags'],
             'CXXFLAGS' => $config['cflags'],
             'LDFLAGS' => $config['ldflags'],
-            'EXTRA_LDFLAGS' => getenv('SPC_CMD_VAR_PHP_MAKE_EXTRA_LDFLAGS'),
+            'EXTRA_LDFLAGS' => getenv('SPC_CMD_VAR_PHP_MAKE_EXTRA_LDFLAGS') ?: '',
             'LIBS' => clean_spaces("{$preStatic} {$staticLibs} {$postStatic} {$sharedLibs}"),
             'LD_LIBRARY_PATH' => BUILD_LIB_PATH,
         ];