diff --git a/.github/actions/php-build/action.yml b/.github/actions/php-build/action.yml
new file mode 100644
index 0000000..45f9bae
--- /dev/null
+++ b/.github/actions/php-build/action.yml
@@ -0,0 +1,38 @@
+name: 'PHP Build'
+description: 'Create PHP build, installing required dependencies.'
+inputs:
+  cache-deps:
+    description: 'Whether to cache composer dependencies.'
+    required: false
+    default: 'true'
+  composer-args:
+    description: 'The arguments to pass to composer when installing dependencies.'
+    required: false
+    default: ''
+  php-version:
+    description: 'The PHP version to use.'
+    required: false
+    default: 'latest'
+runs:
+  using: 'composite'
+  steps:
+    - name: 'Validate composer.json and composer.lock'
+      uses: php-actions/composer@v6
+      with:
+        command: validate
+        php_version: ${{ inputs.php-version }}
+
+    - name: 'Cache Composer Dependencies'
+      id: composer-cache
+      if: ${{ inputs.cache-deps == 'true' }}
+      uses: actions/cache@v3
+      with:
+        key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}
+        path: './src/vendor'
+
+    - name: 'Install Composer Dependencies'
+      if: ${{ steps.composer-cache.outputs.cache-hit != 'true' }}
+      uses: php-actions/composer@v6
+      with:
+        args: ${{ inputs.composer-args }}
+        php_version: ${{ inputs.php-version }}
\ No newline at end of file
diff --git a/.github/actions/php-test/action.yml b/.github/actions/php-test/action.yml
new file mode 100644
index 0000000..8b3286d
--- /dev/null
+++ b/.github/actions/php-test/action.yml
@@ -0,0 +1,60 @@
+name: 'PHP Tests'
+description: 'Run PHPStan and/or PHPUnit tests.'
+inputs:
+  php-version:
+    description: 'The PHP version to use.'
+    default: 'latest'
+    required: false
+  # PHPStan options
+  phpstan-enable:
+    description: 'Whether to enable PHPStan.'
+    default: true
+    required: false
+  phpstan-config:
+    description: 'The location of the PHPStan configuration file (phpstan.neon).'
+    default: 'phpstan.neon'
+    required: false
+  phpstan-memory-limit:
+    description: 'The memory limit for PHPStan.'
+    default: '512M'
+    required: false      
+  phpstan-php-version:
+    description: 'The PHP version to use with PHPStan.'
+    default: 'latest'
+    required: false
+  phpstan-version:
+    description: 'The version of PHPStan to use.'
+    default: 'latest'
+    required: false
+  # PHPUnit options
+  phpunit-enable:
+    description: 'Whether to enable PHPUnit.'
+    default: true
+    required: false
+  phpunit-config-file:
+    description: 'The location of the PHPUnit configuration file (phpunit.xml.dist).'
+    default: 'phpunit.xml.dist'
+    required: false
+  phpunit-version:
+    description: 'The version of PHPUnit to use.'
+    default: 'latest'
+    required: false
+runs:
+  using: 'composite'
+  steps:
+    - name: 'PHPStan'
+      if: ${{ inputs.phpstan-enable && inputs.php-version == inputs.phpstan-php-version }}
+      uses: php-actions/phpstan@v3
+      with:
+        configuration: ${{ inputs.phpstan-config }}
+        memory_limit: ${{ inputs.phpstan-memory-limit }}
+        php_version: ${{ inputs.phpstan-php-version }}
+        version: ${{ inputs.phpstan-version }}
+
+    - name: 'PHPUnit'
+      if: ${{ inputs.phpunit-enable }}
+      uses: php-actions/phpunit@v3
+      with:
+        configuration: ${{ inputs.phpunit-config }}
+        php_version: ${{ inputs.php-version }}
+        version: ${{ inputs.phpunit-version }}
\ No newline at end of file