init

.gitignore

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+/vendor/

composer.json

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+{
+    "name": "dino-ma/php-speed-limit",
+    "description": "This is an php speed limit project;",
+    "authors": [
+        {
+            "name": "dino.ma",
+            "email": "[email protected]"
+        }
+    ],
+    "type": "library",
+    "license": "MIT",
+    "autoload": {
+        "psr-4": {
+            "dino-ma\\php-speed-limit\\": "src/"
+        }},
+    "require": {
+        "php": "^7.1",
+        "predis/predis": "^1.1"
+    }
+}

src/Services/SpeedLimitService.php

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+<?php
+/**
+ * Created by PhpStorm.
+ * User: dino.ma
+ * Date: 2019/9/5
+ * Time: 4:23 PM
+ */
+
+namespace DinoMa\PhpSpeedLimit\Services;
+
+
+class SpeedLimitService implements SpeedLimitServiceInterface
+{
+
+
+    private static $instance;
+
+    private function __construct()
+    {
+    }
+
+    private function __clone()
+    {
+    }
+
+
+    public static function getInstance(): SpeedLimitService
+    {
+        if (!self::$instance instanceof self) {
+            self::$instance = new self();
+        }
+        return self::$instance;
+    }
+
+    public function test() : int
+    {
+        return 0;
+    }
+}

src/Services/SpeedLimitServiceInterface.php

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+<?php
+declare(strict_types=1);
+
+/**
+ *
+ * This file is part of the php-speedlimit package.
+ *
+ * (c) Dino <[email protected]>
+ *
+ * This source file is subject to the MIT license that is bundled
+ * with this source code in the file LICENSE.
+ */
+
+namespace DinoMa\PhpSpeedLimit\Services;
+
+interface SpeedLimitServiceInterface
+{
+
+    public static function getInstance() : SpeedLimitService;
+
+}

src/SpeedLimit.php

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+<?php
+declare(strict_types=1);
+
+/**
+ *
+ * This file is part of the php-speedlimit package.
+ *
+ * (c) Dino <[email protected]>
+ *
+ * This source file is subject to the MIT license that is bundled
+ * with this source code in the file LICENSE.
+ */
+
+namespace DinoMa\PhpSpeedLimit;
+
+
+use DinoMa\PhpSpeedLimit\Services\SpeedLimitService;
+
+class SpeedLimit extends SpeedLimitService
+{
+    public function test(): int
+    {
+        return parent::test();
+    }
+
+}