diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
index c4e2f96d26dd..63dca99d5272 100644
--- a/.github/workflows/tests.yaml
+++ b/.github/workflows/tests.yaml
@@ -18,8 +18,13 @@ jobs:
             -   uses: actions/checkout@v2
             -   uses: shivammathur/setup-php@v1
                 with:
-                    php-version: 7.2
+                    php-version: ${{ matrix.php }}
                     coverage: none # disable xdebug, pcov
+            # report phpunit errors into files-changed PR tab
+            # https://github.com/actions/toolkit/blob/master/docs/problem-matchers.md
+            -   name: Setup Problem Matchers for PHPUnit
+                run: echo "::add-matcher::${{ runner.tool_cache }}/phpunit.json"
+                
             -   run: composer install --no-progress
             -   run: vendor/bin/phpunit
 
@@ -34,6 +39,11 @@ jobs:
                 with:
                     php-version: 7.2
                     coverage: none
+            # report phpunit errors into files-changed PR tab
+            # https://github.com/actions/toolkit/blob/master/docs/problem-matchers.md
+
+            -   name: Setup Problem Matchers for PHPUnit
+                run: echo "::add-matcher::${{ runner.tool_cache }}/phpunit.json"
 
             -   run: composer update --no-progress --prefer-lowest
             -   run: vendor/bin/phpunit