Add Hello world and Rest benchmarks

Author: steevanb

.gitignore

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+.idea/
+vendor/
+

README.md

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-# php-7-2
+<p align="center">
+  <img src="http://www.phpbenchmarks.com/images/logo_github.png">
+  <br>
+  <a href="http://www.phpbenchmarks.com" target="_blank">www.phpbenchmarks.com</a>
+</p>
+
+## What is www.phpbenchmarks.com ?
+
+You will find lot of benchmarks for PHP frameworks, ORM and libs here.
+
+You can compare results between Apache Bench and Siege, PHP 5.6 to 7.2 and versions of your favorites PHP code.
+
+## What is this repository ?
+
+It's benchmark source code for PHP 7.2.
+
+You can find how we benchmark it [here](http://www.phpbenchmarks.com/en/benchmark-protocol).
+
+## PHP 7.2
+
+Benchmark | Tool | Score
+--------- | ---- | -----
+[Hello World](http://www.phpbenchmarks.com/en/benchmark/apache-bench/php-7.2.html#benchmark-hello-world) | Apache Bench | In progress
+[News](http://www.phpbenchmarks.com/en/benchmark/apache-bench/php-7.2.html#benchmark-news) | Apache Bench | In progress
+[Rest API](http://www.phpbenchmarks.com/en/benchmark/apache-bench/php-7.2.html#benchmark-rest) | Apache Bench | In progress
+
+Scores are too low ? Do not hesitate to create a pull request, and ask a new benchmark !

Translation/TranslationService.php

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+<?php
+
+declare(strict_types=1);
+
+namespace Php72Benchmark\Translation;
+
+class TranslationService
+{
+    protected static $translations = false;
+
+    public static function loadTranslations(): void
+    {
+        $locales = ['fr_FR', 'en_GB', 'aa_BB'];
+        $locale = $locales[rand(0, 2)];
+
+        if (file_exists(__DIR__ . '/phpbenchmarks.' . $locale . '.php')) {
+            static::$translations = require(__DIR__ . '/phpbenchmarks.' . $locale . '.php');
+        } else {
+            static::$translations = require(__DIR__ . '/phpbenchmarks.en.php');
+        }
+    }
+
+    public static function getTranslation(string $key): string
+    {
+        return static::$translations[$key] ?? $key;
+    }
+}