init

- 框架初始化
 - 安装插件
 - 修复PHP8.4报错

addons/epay/library/v3/Yansongda/Pay/Packer/XmlPacker.php

@@ -0,0 +1,46 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Yansongda\Pay\Packer;
+
+use Yansongda\Pay\Contract\PackerInterface;
+
+class XmlPacker implements PackerInterface
+{
+    public function pack(array $payload): string
+    {
+        $xml = '<xml>';
+
+        foreach ($payload as $key => $val) {
+            $xml .= is_numeric($val) ? '<'.$key.'>'.$val.'</'.$key.'>' :
+                                       '<'.$key.'><![CDATA['.$val.']]></'.$key.'>';
+        }
+
+        $xml .= '</xml>';
+
+        return $xml;
+    }
+
+    public function unpack(string $payload): ?array
+    {
+        if (empty($payload)) {
+            return [];
+        }
+
+        if (PHP_VERSION_ID < 80000) {
+            libxml_disable_entity_loader();
+        }
+
+        $data = json_decode(json_encode(
+            simplexml_load_string($payload, 'SimpleXMLElement', LIBXML_NOCDATA),
+            JSON_UNESCAPED_UNICODE
+        ), true);
+
+        if (JSON_ERROR_NONE === json_last_error()) {
+            return $data;
+        }
+
+        return null;
+    }
+}