Add PHPBench benchmarks

benchmarks/Base62Bench.php

@@ -0,0 +1,46 @@
+<?php
+
+use Tuupola\Base62\PhpEncoder;
+use Tuupola\Base62\BcmathEncoder;
+use Tuupola\Base62\GmpEncoder;
+
+/**
+ * @BeforeMethods({"init"})
+ */
+
+class Base62Bench
+{
+    private $data;
+
+    public function init()
+    {
+        $this->data = random_bytes(128);
+    }
+
+    /**
+     * @Revs(10)
+     */
+    public function benchGmpEncoder()
+    {
+        $encoded = GmpEncoder::encode($this->data);
+        $decoded = GmpEncoder::decode($encoded);
+    }
+
+    /**
+     * @Revs(10)
+     */
+    public function benchPhpEncoder()
+    {
+        $encoded = PhpEncoder::encode($this->data);
+        $decoded = PhpEncoder::decode($encoded);
+    }
+
+    /**
+     * @Revs(10)
+     */
+    public function benchBcmathEncoder()
+    {
+        $encoded = BcmathEncoder::encode($this->data);
+        $decoded = BcmathEncoder::decode($encoded);
+    }
+}

phpbench.json

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+{
+    "bootstrap": "vendor/autoload.php",
+    "reports": {
+        "default": {
+            "generator": "table",
+            "cols": [ "subject", "mean", "diff" ],
+            "break": ["benchmark"]
+        }
+    }
+}