From 5c941e663df8a9b9273f0cdf7803db70078ab56d Mon Sep 17 00:00:00 2001
From: supahgreg <supahgreg@users.noreply.github.com>
Date: Sat, 11 Oct 2025 05:38:51 +0000
Subject: Cache PHPStan results, drop 'parallel.maximumNumberOfProcesses'
 param.

---
 .github/workflows/php-code-quality.yml | 18 ++++++++++++++++++
 phpstan.neon                           |  2 --
 2 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/php-code-quality.yml b/.github/workflows/php-code-quality.yml
index 5e1f7c2d7..6be750081 100644
--- a/.github/workflows/php-code-quality.yml
+++ b/.github/workflows/php-code-quality.yml
@@ -37,9 +37,27 @@ jobs:
         # PHPUnit is installed to support PHPStan checking tests/
         tools: phpstan/phpstan:2.1.31, phpunit/phpunit:9.6.29
 
+    # https://phpstan.org/user-guide/result-cache
+    - name: Restore result cache
+      uses: actions/cache/restore@v4
+      with:
+        path: .phpstan-tmp
+        key: phpstan-result-cache-${{ github.run_id }}
+        restore-keys: |
+          phpstan-result-cache-
+
     - name: Run PHPStan
       run: phpstan analyze --no-progress
 
+    # https://phpstan.org/user-guide/result-cache
+    - name: Save result cache
+      uses: actions/cache/save@v4
+      if: ${{ !cancelled() }}
+      with:
+        # same as in phpstan.neon
+        path: .phpstan-tmp
+        key: phpstan-result-cache-${{ github.run_id }}
+
   phpunit:
     name: PHPUnit
     runs-on: ubuntu-latest
diff --git a/phpstan.neon b/phpstan.neon
index 5bd18c58d..fb6625bb7 100644
--- a/phpstan.neon
+++ b/phpstan.neon
@@ -1,8 +1,6 @@
 parameters:
    level: 6
    tmpDir: .phpstan-tmp
-   parallel:
-      maximumNumberOfProcesses: 4
    reportUnmatchedIgnoredErrors: false
    ignoreErrors:
       # set_include_path detection issue
-- 
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