Predis to v2.2.2

plugins/cache-redis/Predis/Command/Redis/TDigest/TDIGESTCDF.php

@@ -0,0 +1,57 @@
+<?php
+
+/*
+ * This file is part of the Predis package.
+ *
+ * (c) 2009-2020 Daniele Alessandri
+ * (c) 2021-2023 Till Krüss
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Predis\Command\Redis\TDigest;
+
+use Predis\Command\Command as RedisCommand;
+
+/**
+ * @see https://redis.io/commands/tdigest.cdf/
+ *
+ * Returns, for each input value, an estimation of the fraction (floating-point)
+ * of (observations smaller than the given value + half
+ * the observations equal to the given value).
+ */
+class TDIGESTCDF extends RedisCommand
+{
+    public function getId()
+    {
+        return 'TDIGEST.CDF';
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function parseResponse($data)
+    {
+        if (!is_array($data)) {
+            return $data;
+        }
+
+        // convert Relay (RESP3) constants to strings
+        return array_map(function ($value) {
+            if (is_string($value) || !is_float($value)) {
+                return $value;
+            }
+
+            if (is_nan($value)) {
+                return 'nan';
+            }
+
+            switch ($value) {
+                case INF: return 'inf';
+                case -INF: return '-inf';
+                default: return $value;
+            }
+        }, $data);
+    }
+}