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vendor/doctrine/cache/lib/Doctrine/Common/Cache/ZendDataCache.php

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+<?php
+
+namespace Doctrine\Common\Cache;
+
+use function zend_shm_cache_clear;
+use function zend_shm_cache_delete;
+use function zend_shm_cache_fetch;
+use function zend_shm_cache_store;
+
+/**
+ * Zend Data Cache cache driver.
+ *
+ * @link   www.doctrine-project.org
+ */
+class ZendDataCache extends CacheProvider
+{
+    /**
+     * {@inheritdoc}
+     */
+    protected function doFetch($id)
+    {
+        return zend_shm_cache_fetch($id);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doContains($id)
+    {
+        return zend_shm_cache_fetch($id) !== false;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doSave($id, $data, $lifeTime = 0)
+    {
+        return zend_shm_cache_store($id, $data, $lifeTime);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doDelete($id)
+    {
+        return zend_shm_cache_delete($id);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doFlush()
+    {
+        $namespace = $this->getNamespace();
+        if (empty($namespace)) {
+            return zend_shm_cache_clear();
+        }
+
+        return zend_shm_cache_clear($namespace);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doGetStats()
+    {
+        return null;
+    }
+}