Tool - Change merchant config to php array

.gitignore

@@ -2,4 +2,4 @@
 composer.phar
 composer.lock
 # Tool's optional config
-/tool/_merchants.json
+/tool/_merchants.php

tool/README.md

@@ -44,20 +44,22 @@ MERCHANTS SETTING
 
 You can save your favorite or test LINE Pay merchant account for display and selection on the sample page.
 
-To enable the setting, create `tool/_merchants.json` file (Under `tool` folder) using the following JSON format:
-
-```json
-[
-    {
-        "title": "First Merchant",
-        "channelId": "{your channelId}",
-        "channelSecret": "{your channelSecret}"
-    },
-    {
-        "title": "Second Merchant",
-        "channelId": "{your channelId}",
-        "channelSecret": "{your channelSecret}"
-    }
+To enable the setting, create `tool/_merchants.php` file (Under `tool` folder) using the following PHP array format:
+
+```php
+<?php
+
+return [
+    [
+        "title" => "First Merchant",
+        "channelId" => "{your channelId}",
+        "channelSecret" => "{your channelSecret}",
+    ],
+    [
+        "title" => "Second Merchant",
+        "channelId" => "{your channelId}",
+        "channelSecret" => "{your channelSecret}",
+    ],
 ]
 ```
 

tool/_config.php

@@ -87,7 +87,7 @@ function saveErrorLog($name, \Psr\Http\Message\RequestInterface $request, $reset
  */
 class Merchant
 {
-    private static $configPath = __DIR__ . "/_merchants.json";
+    private static $configPath = __DIR__ . "/_merchants.php";
 
     /**
      * Get merchant list from config
@@ -98,7 +98,7 @@ public static function getList()
     {
         if (file_exists(self::$configPath)) {
 
-            $data = json_decode(file_get_contents(self::$configPath), true);
+            $data = include self::$configPath;
 
             // Check format
             foreach ((array)$data as $key => $each) {