fix memory leak

a1812 · a1812 · commit 97b321b90a9a · 2021-11-12T04:03:47.000+03:00
diff --git a/src/Symfony/Component/Cache/Traits/AbstractAdapterTrait.php b/src/Symfony/Component/Cache/Traits/AbstractAdapterTrait.php
@@ -364,6 +364,10 @@ private function generateItems(iterable $items, array &$keys): \Generator
 
     private function getId($key)
     {
+        if (count($this->ids) > 1000) {
+            array_splice($this->ids, 0, 500); // stop memory leak if there are many keys
+        }
+
         if ($this->versioningIsEnabled && '' === $this->namespaceVersion) {
             $this->ids = [];
             $this->namespaceVersion = '1'.static::NS_SEPARATOR;
