需求按钮状态优化

backend/application/common/service/SubscribeMessageService.php

@@ -58,7 +58,7 @@ class SubscribeMessageService
             'remark' => '该工单已结算完成',
             /*
             订单编号：200912162851392635fdbf4149
-            结算金额：99.9元
+            结算金额：￥99.9
             结算说明：订单已收货结算完成
             */
             'fields' => ['character_string4', 'amount1', 'thing2'],
@@ -231,11 +231,46 @@ class SubscribeMessageService
     public static function packData($template_id, $values): array
     {
         $fields = self::MSG_MAP[$template_id]['fields'] ?? [];
+        $param_data = [];
         foreach ($fields as $key => $field) {
-            $param_data[$field] = ['value' => $values[$key] ?? ''];
+            $value = $values[$key] ?? '';
+            //微信 amount 类型不带币种符号时会固定展示 5 位小数，如 2.37 显示成 2.37000
+            if (strpos($field, 'amount') === 0) {
+                $value = self::formatAmount($value);
+            }
+            $param_data[$field] = ['value' => $value];
         }
 
-        return $param_data ?? [];
+        return $param_data;
+    }
+
+    /**
+     * 订阅消息金额：最多两位小数，去掉末尾多余的 0，并加上币种符号。
+     * 微信 amount 类型不带币种符号时会把 2.37 展示成 2.37000。
+     * @param mixed $amount
+     * @return string 如 ￥2.37、￥2.3、￥2
+     */
+    public static function formatAmount($amount): string
+    {
+        if ($amount === '' || $amount === null || !is_numeric($amount)) {
+            return (string)$amount;
+        }
+        $number = (string)$amount;
+        if (stripos($number, 'e') !== false) {
+            $number = sprintf('%.8F', (float)$amount);
+        }
+        $negative = strncmp($number, '-', 1) === 0;
+        if ($negative) {
+            $number = substr($number, 1);
+        }
+        //先加 0.005 再截到 2 位，等价于四舍五入，避免 bcmath 直接截断
+        $rounded = bcadd($number, '0.005', 2);
+        $rounded = rtrim(rtrim($rounded, '0'), '.');
+        if ($rounded === '') {
+            $rounded = '0';
+        }
+
+        return '￥' . ($negative ? '-' : '') . $rounded;
     }
 
 }