diff --git a/.travis.yml b/.travis.yml
index 92ac1baaeae..1c01de229c1 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -29,6 +29,7 @@ cache:
   - $HOME/.rvm/gems/ruby-2.4.1
   - $HOME/website/node_modules/
   - $HOME/.cache/deno
+  - $HOME/.phpenv/versions/8.1.4
 
 services:
   - docker
@@ -88,8 +89,14 @@ before_install:
   #- sudo apt-get update
   #- sudo apt-get install dart
   # switch to php7
+  - sudo apt-get install libonig-dev libzip-dev
+  - git clone https://github.com/php-build/php-build $(phpenv root)/plugins/php-build
+  - git clone https://github.com/ngyuki/phpenv-composer.git $(phpenv root)/plugins/phpenv-composer
+  - phpenv install 8.1.4
+  - phpenv rehash
   - phpenv versions
-  - phpenv global 7.2.15
+  #- phpenv global 7.2.15
+  - phpenv global 8.1.4
   - php -v
   # comment out below as installation failed in travis
   # Add rebar3 build tool and recent Erlang/OTP for Erlang petstore server tests.
diff --git a/CI/circle_parallel.sh b/CI/circle_parallel.sh
index 01960b8f3e4..3678e2eb0cc 100755
--- a/CI/circle_parallel.sh
+++ b/CI/circle_parallel.sh
@@ -26,6 +26,9 @@ if [ "$NODE_INDEX" = "1" ]; then
 
 elif [ "$NODE_INDEX" = "2" ]; then
   echo "Running node $NODE_INDEX to test Go"
+
+  php -v
+
   # install haskell
   #curl -sSLk https://get.haskellstack.org/ | sh
   #stack upgrade
diff --git a/pom.xml b/pom.xml
index 63c0278abe3..c46e4824ccc 100644
--- a/pom.xml
+++ b/pom.xml
@@ -1113,6 +1113,7 @@
                 </property>
             </activation>
             <modules>
+                <module>samples/client/petstore/php/OpenAPIClient-php</module>
                 <!-- TODO: move to github action or circleci
                 <module>samples/client/petstore/crystal</module>-->
                 <!-- servers -->
@@ -1137,8 +1138,6 @@
                 <module>samples/client/petstore/rust</module>
                 <module>samples/client/petstore/rust/reqwest/petstore</module>
                 <module>samples/client/petstore/rust/reqwest/petstore-async</module>
-                <!-- commented out due to php ^7.3 || ^8.0 not in travis
-                <module>samples/client/petstore/php/OpenAPIClient-php</module> -->
                 <!--<module>samples/client/petstore/javascript-apollo</module>-->
                 <module>samples/client/petstore/python-legacy</module>
                 <module>samples/client/petstore/python-asyncio</module>