From f72a5fe203528591ec219e7ed9c9ab0593f79777 Mon Sep 17 00:00:00 2001
From: zip-fa <ikpocc@gmail.com>
Date: Wed, 12 Feb 2025 15:23:02 +0200
Subject: [PATCH 1/2] fix: move const inside class to prevent memory leaks in
 worker mode

---
 lib/Client.php      | 5 ++---
 lib/FeatureFlag.php | 6 +++---
 2 files changed, 5 insertions(+), 6 deletions(-)

diff --git a/lib/Client.php b/lib/Client.php
index ff3f082..cfd4bbc 100644
--- a/lib/Client.php
+++ b/lib/Client.php
@@ -9,13 +9,12 @@
 use PostHog\Consumer\Socket;
 use Symfony\Component\Clock\Clock;
 
-const SIZE_LIMIT = 50_000;
-
 /**
  * PostHog PHP SDK client for event capture, user identification, feature flags, and error tracking.
  */
 class Client implements FeatureFlagEvaluationsHost
 {
+    private const SIZE_LIMIT = 50_000;
     private const CONSUMERS = [
         "socket" => Socket::class,
         "file" => File::class,
@@ -157,7 +156,7 @@ public function __construct(
         $this->groupTypeMapping = [];
         $this->cohorts = [];
         $this->featureFlagsByKey = [];
-        $this->distinctIdsFeatureFlagsReported = new SizeLimitedHash(SIZE_LIMIT);
+        $this->distinctIdsFeatureFlagsReported = new SizeLimitedHash(self::SIZE_LIMIT);
         $this->flagsEtag = null;
 
         ExceptionCapture::configure($this, $options['error_tracking'] ?? []);
diff --git a/lib/FeatureFlag.php b/lib/FeatureFlag.php
index dc2c2ab..3c1f77a 100644
--- a/lib/FeatureFlag.php
+++ b/lib/FeatureFlag.php
@@ -4,8 +4,6 @@
 
 use Symfony\Component\Clock\Clock;
 
-const LONG_SCALE = 0xfffffffffffffff;
-
 /**
  * Local feature flag matching helpers.
  *
@@ -13,6 +11,8 @@
  */
 class FeatureFlag
 {
+    private const LONG_SCALE = 0xfffffffffffffff;
+
     /**
      * Match a single property filter against provided property values.
      *
@@ -585,7 +585,7 @@ private static function hash($key, $distinctId, $salt = "")
         $hashKey = sprintf("%s.%s%s", $key, $distinctId, $salt);
         $hashVal = base_convert(substr(sha1($hashKey), 0, 15), 16, 10);
 
-        return $hashVal / LONG_SCALE;
+        return $hashVal / self::LONG_SCALE;
     }
 
     private static function getMatchingVariant($flag, $distinctId)

From 9ccb6ae5c7b9a2083ef5e26f978518e954197beb Mon Sep 17 00:00:00 2001
From: zip-fa <ikpocc@gmail.com>
Date: Sat, 30 May 2026 12:49:37 +0300
Subject: [PATCH 2/2] chore: add changeset

---
 .changeset/old-onions-attend.md | 5 +++++
 1 file changed, 5 insertions(+)
 create mode 100644 .changeset/old-onions-attend.md

diff --git a/.changeset/old-onions-attend.md b/.changeset/old-onions-attend.md
new file mode 100644
index 0000000..9763399
--- /dev/null
+++ b/.changeset/old-onions-attend.md
@@ -0,0 +1,5 @@
+---
+"posthog-php": patch
+---
+
+Move const inside class to prevent memory leaks in worker mode